3957208512 has 56 divisors (see below), whose sum is σ = 10925348736. Its totient is φ = 1261717248.

The previous prime is 3957208487. The next prime is 3957208537. The reversal of 3957208512 is 2158027593.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3957208487) and next prime (3957208537).

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, 443638 + ... + 452469.

Almost surely, 2^3957208512 is an apocalyptic number.

3957208512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3957208512 is an abundant number, since it is smaller than the sum of its proper divisors (6968140224).

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

3957208512 is a wasteful number, since it uses less digits than its factorization.

3957208512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896145 (or 896135 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 3957208512 is about 62906.3471519369. The cubic root of 3957208512 is about 1581.7201412422.

The spelling of 3957208512 in words is "three billion, nine hundred fifty-seven million, two hundred eight thousand, five hundred twelve".