3156879872 has 40 divisors (see below), whose sum is σ = 6678647316. Its totient is φ = 1485586432.

The previous prime is 3156879833. The next prime is 3156879877. The reversal of 3156879872 is 2789786513.

It can be written as a sum of positive squares in 2 ways, for example, as 2398648576 + 758231296 = 48976^2 + 27536^2 .

It is not an unprimeable number, because it can be changed into a prime (3156879877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172643 + ... + 190050.

Almost surely, 2^3156879872 is an apocalyptic number.

3156879872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3156879872 is an abundant number, since it is smaller than the sum of its proper divisors (3521767444).

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

3156879872 is an equidigital number, since it uses as much as digits as its factorization.

3156879872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362728 (or 362712 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 56.

The square root of 3156879872 is about 56186.1181431855. The cubic root of 3156879872 is about 1466.9636482172.

The spelling of 3156879872 in words is "three billion, one hundred fifty-six million, eight hundred seventy-nine thousand, eight hundred seventy-two".