3131407880 has 16 divisors (see below), whose sum is σ = 7045667820. Its totient is φ = 1252563136.

The previous prime is 3131407819. The next prime is 3131407913. The reversal of 3131407880 is 887041313.

3131407880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2809636036 + 321771844 = 53006^2 + 17938^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3131407880.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39142559 + ... + 39142638.

Almost surely, 2^3131407880 is an apocalyptic number.

It is an amenable number.

3131407880 is an abundant number, since it is smaller than the sum of its proper divisors (3914259940).

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

3131407880 is a wasteful number, since it uses less digits than its factorization.

3131407880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78285208 (or 78285204 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 3131407880 is about 55958.9839078588. The cubic root of 3131407880 is about 1463.0074804476.

The spelling of 3131407880 in words is "three billion, one hundred thirty-one million, four hundred seven thousand, eight hundred eighty".