3957818488 has 32 divisors (see below), whose sum is σ = 8161796160. Its totient is φ = 1787817600.

The previous prime is 3957818477. The next prime is 3957818549. The reversal of 3957818488 is 8848187593.

It is a super-2 number, since 2×3957818488² = 31328654367909212288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399963 + ... + 409738.

It is an arithmetic number, because the mean of its divisors is an integer number (255056130).

Almost surely, 2^3957818488 is an apocalyptic number.

It is an amenable number.

3957818488 is an abundant number, since it is smaller than the sum of its proper divisors (4203977672).

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

3957818488 is a wasteful number, since it uses less digits than its factorization.

3957818488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809767 (or 809763 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 61.

The square root of 3957818488 is about 62911.1952517197. The cubic root of 3957818488 is about 1581.8014074305.

The spelling of 3957818488 in words is "three billion, nine hundred fifty-seven million, eight hundred eighteen thousand, four hundred eighty-eight".