2331561564087 has 12 divisors (see below), whose sum is σ = 3616299569016. Its totient is φ = 1332320893680.

The previous prime is 2331561564047. The next prime is 2331561564109. The reversal of 2331561564087 is 7804651651332.

It is not a de Polignac number, because 2331561564087 - 2¹⁵ = 2331561531319 is a prime.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331561564047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7930481364 + ... + 7930481657.

It is an arithmetic number, because the mean of its divisors is an integer number (301358297418).

Almost surely, 2^{2331561564087} is an apocalyptic number.

2331561564087 is a deficient number, since it is larger than the sum of its proper divisors (1284738004929).

2331561564087 is a wasteful number, since it uses less digits than its factorization.

2331561564087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15860963038 (or 15860963031 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 2331561564087 in words is "two trillion, three hundred thirty-one billion, five hundred sixty-one million, five hundred sixty-four thousand, eighty-seven".