2561118760604 has 12 divisors (see below), whose sum is σ = 4482152513328. Its totient is φ = 1280503756800.

The previous prime is 2561118760601. The next prime is 2561118760621. The reversal of 2561118760604 is 4060678111652.

2561118760604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2561118760601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13802192 + ... + 13986519.

It is an arithmetic number, because the mean of its divisors is an integer number (373512709444).

Almost surely, 2^{2561118760604} is an apocalyptic number.

It is an amenable number.

2561118760604 is a deficient number, since it is larger than the sum of its proper divisors (1921033752724).

2561118760604 is a wasteful number, since it uses less digits than its factorization.

2561118760604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27811756 (or 27811754 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 2561118760604 in words is "two trillion, five hundred sixty-one billion, one hundred eighteen million, seven hundred sixty thousand, six hundred four".