3956918956 has 6 divisors (see below), whose sum is σ = 6924608180. Its totient is φ = 1978459476.

The previous prime is 3956918941. The next prime is 3956918969. The reversal of 3956918956 is 6598196593.

It is a junction number, because it is equal to n+sod(n) for n = 3956918894 and 3956918903.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494614866 + ... + 494614873.

Almost surely, 2^3956918956 is an apocalyptic number.

It is an amenable number.

3956918956 is a deficient number, since it is larger than the sum of its proper divisors (2967689224).

3956918956 is a wasteful number, since it uses less digits than its factorization.

3956918956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989229743 (or 989229741 counting only the distinct ones).

The product of its digits is 15746400, while the sum is 61.

The square root of 3956918956 is about 62904.0456250629. The cubic root of 3956918956 is about 1581.6815612072.

The spelling of 3956918956 in words is "three billion, nine hundred fifty-six million, nine hundred eighteen thousand, nine hundred fifty-six".