68090316956 has 72 divisors (see below), whose sum is σ = 127064211456. Its totient is φ = 31909066560.

The previous prime is 68090316941. The next prime is 68090316989. The reversal of 68090316956 is 65961309086.

It is a super-2 number, since 2×68090316956² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68090316898 and 68090316907.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20078021 + ... + 20081411.

Almost surely, 2^68090316956 is an apocalyptic number.

It is an amenable number.

68090316956 is a deficient number, since it is larger than the sum of its proper divisors (58973894500).

68090316956 is a wasteful number, since it uses less digits than its factorization.

68090316956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3627 (or 3596 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 53.

The spelling of 68090316956 in words is "sixty-eight billion, ninety million, three hundred sixteen thousand, nine hundred fifty-six".