3157432686 has 24 divisors (see below), whose sum is σ = 7138544400. Its totient is φ = 1006717536.

The previous prime is 3157432637. The next prime is 3157432699. The reversal of 3157432686 is 6862347513.

3157432686 is a `hidden beast` number, since 3 + 157 + 432 + 68 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3812911 + ... + 3813738.

It is an arithmetic number, because the mean of its divisors is an integer number (297439350).

Almost surely, 2^3157432686 is an apocalyptic number.

3157432686 is an abundant number, since it is smaller than the sum of its proper divisors (3981111714).

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

3157432686 is a wasteful number, since it uses less digits than its factorization.

3157432686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7626680 (or 7626677 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 3157432686 is about 56191.0374170116. The cubic root of 3157432686 is about 1467.0492718649.

The spelling of 3157432686 in words is "three billion, one hundred fifty-seven million, four hundred thirty-two thousand, six hundred eighty-six".