2130256872 has 48 divisors (see below), whose sum is σ = 6020295840. Its totient is φ = 679211808.

The previous prime is 2130256861. The next prime is 2130256889. The reversal of 2130256872 is 2786520312.

2130256872 is a `hidden beast` number, since 21 + 3 + 0 + 2 + 568 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 641538 + ... + 644849.

It is an arithmetic number, because the mean of its divisors is an integer number (125422830).

Almost surely, 2^2130256872 is an apocalyptic number.

It is an amenable number.

2130256872 is an abundant number, since it is smaller than the sum of its proper divisors (3890038968).

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

2130256872 is a wasteful number, since it uses less digits than its factorization.

2130256872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286422 (or 1286415 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 2130256872 is about 46154.7058489164. The cubic root of 2130256872 is about 1286.7000712003.

The spelling of 2130256872 in words is "two billion, one hundred thirty million, two hundred fifty-six thousand, eight hundred seventy-two".