3157172886 has 64 divisors (see below), whose sum is σ = 7651123200. Its totient is φ = 848395296.

The previous prime is 3157172881. The next prime is 3157172927. The reversal of 3157172886 is 6882717513.

It is a happy number.

3157172886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3157172881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96691 + ... + 125153.

It is an arithmetic number, because the mean of its divisors is an integer number (119548800).

Almost surely, 2^3157172886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3157172886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3825561600).

3157172886 is an abundant number, since it is smaller than the sum of its proper divisors (4493950314).

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

3157172886 is a wasteful number, since it uses less digits than its factorization.

3157172886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28633.

The product of its digits is 564480, while the sum is 48.

The square root of 3157172886 is about 56188.7256128843. The cubic root of 3157172886 is about 1467.0090334927.

The spelling of 3157172886 in words is "three billion, one hundred fifty-seven million, one hundred seventy-two thousand, eight hundred eighty-six".