2131911670 has 16 divisors (see below), whose sum is σ = 4385647008. Its totient is φ = 730941120.

The previous prime is 2131911647. The next prime is 2131911703. The reversal of 2131911670 is 761191312.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 15227871 + ... + 15228010.

It is an arithmetic number, because the mean of its divisors is an integer number (274102938).

Almost surely, 2^2131911670 is an apocalyptic number.

2131911670 is an abundant number, since it is smaller than the sum of its proper divisors (2253735338).

2131911670 is a wasteful number, since it uses less digits than its factorization.

2131911670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30455895.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 2131911670 is about 46172.6290133018. The cubic root of 2131911670 is about 1287.0331574174.

The spelling of 2131911670 in words is "two billion, one hundred thirty-one million, nine hundred eleven thousand, six hundred seventy".