3967968968 has 16 divisors (see below), whose sum is σ = 7831518000. Its totient is φ = 1879564176.

The previous prime is 3967968923. The next prime is 3967968973. The reversal of 3967968968 is 8698697693.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13052378 + ... + 13052681.

It is an arithmetic number, because the mean of its divisors is an integer number (489469875).

Almost surely, 2^3967968968 is an apocalyptic number.

3967968968 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3967968968 is a deficient number, since it is larger than the sum of its proper divisors (3863549032).

3967968968 is a wasteful number, since it uses less digits than its factorization.

3967968968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26105084 (or 26105080 counting only the distinct ones).

The product of its digits is 211631616, while the sum is 71.

The square root of 3967968968 is about 62991.8166748666. The cubic root of 3967968968 is about 1583.1525168018.

The spelling of 3967968968 in words is "three billion, nine hundred sixty-seven million, nine hundred sixty-eight thousand, nine hundred sixty-eight".