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80774037672 = 23361183130133
BaseRepresentation
bin100101100111010000…
…0100000000010101000
321201111021121021001220
41023032200200002220
52310411123201142
6101035043542040
75556440664126
oct1131640400250
9251437537056
1080774037672
113128a925039
12137a308a920
1378035c7783
143ca38a6916
15217b4182ec
hex12ce8200a8

80774037672 has 64 divisors (see below), whose sum is σ = 205364415360. Its totient is φ = 26467948800.

The previous prime is 80774037661. The next prime is 80774037683. The reversal of 80774037672 is 27673047708.

It is an interprime number because it is at equal distance from previous prime (80774037661) and next prime (80774037683).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2665518 + ... + 2695650.

It is an arithmetic number, because the mean of its divisors is an integer number (3208818990).

Almost surely, 280774037672 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 80774037672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102682207680).

80774037672 is an abundant number, since it is smaller than the sum of its proper divisors (124590377688).

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

80774037672 is a wasteful number, since it uses less digits than its factorization.

80774037672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32034 (or 32030 counting only the distinct ones).

The product of its (nonzero) digits is 2765952, while the sum is 51.

The spelling of 80774037672 in words is "eighty billion, seven hundred seventy-four million, thirty-seven thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 61 122 183 244 366 488 732 1464 1831 3662 5493 7324 10986 14648 21972 30133 43944 60266 90399 111691 120532 180798 223382 241064 335073 361596 446764 670146 723192 893528 1340292 1838113 2680584 3676226 5514339 7352452 11028678 14704904 22057356 44114712 55173523 110347046 165520569 220694092 331041138 441388184 662082276 1324164552 3365584903 6731169806 10096754709 13462339612 20193509418 26924679224 40387018836 80774037672