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67863772340 = 22571340192987
BaseRepresentation
bin111111001100111111…
…101111110010110100
320111011112122211102122
4333030333233302310
52102441111203330
651102020055112
74621504355450
oct771477576264
9214145584378
1067863772340
112686536a671
121119b534498
1365269b4010
1433db019660
151b72cde5e5
hexfccfefcb4

67863772340 has 96 divisors (see below), whose sum is σ = 175841051904. Its totient is φ = 21423974400.

The previous prime is 67863772321. The next prime is 67863772351. The reversal of 67863772340 is 4327736876.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 683327 + ... + 776313.

It is an arithmetic number, because the mean of its divisors is an integer number (1831677624).

Almost surely, 267863772340 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 67863772340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87920525952).

67863772340 is an abundant number, since it is smaller than the sum of its proper divisors (107977279564).

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

67863772340 is a wasteful number, since it uses less digits than its factorization.

67863772340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93417 (or 93415 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 53.

The spelling of 67863772340 in words is "sixty-seven billion, eight hundred sixty-three million, seven hundred seventy-two thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 182 260 364 401 455 802 910 1604 1820 2005 2807 4010 5213 5614 8020 10426 11228 14035 20852 26065 28070 36491 52130 56140 72982 92987 104260 145964 182455 185974 364910 371948 464935 650909 729820 929870 1208831 1301818 1859740 2417662 2603636 3254545 4835324 6044155 6509090 8461817 12088310 13018180 16923634 24176620 33847268 37287787 42309085 74575574 84618170 149151148 169236340 186438935 261014509 372877870 484741231 522029018 745755740 969482462 1044058036 1305072545 1938964924 2423706155 2610145090 3393188617 4847412310 5220290180 6786377234 9694824620 13572754468 16965943085 33931886170 67863772340