3936457868 has 48 divisors (see below), whose sum is σ = 7939223040. Its totient is φ = 1672897536.

The previous prime is 3936457859. The next prime is 3936457871. The reversal of 3936457868 is 8687546393.

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, 2697323 + ... + 2698781.

It is an arithmetic number, because the mean of its divisors is an integer number (165400480).

Almost surely, 2^3936457868 is an apocalyptic number.

It is an amenable number.

3936457868 is an abundant number, since it is smaller than the sum of its proper divisors (4002765172).

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

3936457868 is a wasteful number, since it uses less digits than its factorization.

3936457868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214 (or 2212 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 59.

The square root of 3936457868 is about 62741.1975339968. The cubic root of 3936457868 is about 1578.9505753660.

The spelling of 3936457868 in words is "three billion, nine hundred thirty-six million, four hundred fifty-seven thousand, eight hundred sixty-eight".