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86876267868 = 2232131016592789
BaseRepresentation
bin101000011101000111…
…0101010010101011100
322022020120000200012200
41100322032222111130
52410410311032433
6103524351531500
76163606043535
oct1207216522534
9268216020180
1086876267868
113393142a995
1214a06829b90
138266908180
1442c20c768c
1523d6ee6613
hex143a3aa55c

86876267868 has 144 divisors (see below), whose sum is σ = 239286247200. Its totient is φ = 26416857600.

The previous prime is 86876267867. The next prime is 86876267887.

86876267868 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 86876267796 and 86876267805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86876267867) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31148218 + ... + 31151006.

It is an arithmetic number, because the mean of its divisors is an integer number (1661710050).

Almost surely, 286876267868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86876267868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119643123600).

86876267868 is an abundant number, since it is smaller than the sum of its proper divisors (152409979332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86876267868 is a wasteful number, since it uses less digits than its factorization.

86876267868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3572 (or 3567 counting only the distinct ones).

The product of its digits is 520224768, while the sum is 72.

The spelling of 86876267868 in words is "eighty-six billion, eight hundred seventy-six million, two hundred sixty-seven thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 101 117 156 202 234 303 404 468 606 659 909 1212 1313 1318 1818 1977 2626 2636 2789 3636 3939 3954 5252 5578 5931 7878 7908 8367 8567 11156 11817 11862 15756 16734 17134 23634 23724 25101 25701 33468 34268 36257 47268 50202 51402 66559 72514 77103 100404 102804 108771 133118 145028 154206 199677 217542 266236 281689 308412 326313 399354 435084 563378 599031 652626 798708 845067 865267 1126756 1198062 1305252 1690134 1730534 1837951 2396124 2535201 2595801 3380268 3461068 3661957 3675902 5070402 5191602 5513853 7323914 7351804 7787403 10140804 10383204 10985871 11027706 14647828 15574806 16541559 21971742 22055412 23893363 31149612 32957613 33083118 43943484 47786726 65915226 66166236 71680089 95573452 131830452 143360178 185633051 215040267 286720356 371266102 430080534 556899153 742532204 860161068 1113798306 1670697459 2227596612 2413229663 3341394918 4826459326 6682789836 7239688989 9652918652 14479377978 21719066967 28958755956 43438133934 86876267868