2585675885638 has 16 divisors (see below), whose sum is σ = 3881836722960. Its totient is φ = 1291730442016.

The previous prime is 2585675885629. The next prime is 2585675885669. The reversal of 2585675885638 is 8365885765852.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80491956 + ... + 80524072.

It is an arithmetic number, because the mean of its divisors is an integer number (242614795185).

Almost surely, 2^{2585675885638} is an apocalyptic number.

2585675885638 is a deficient number, since it is larger than the sum of its proper divisors (1296160837322).

2585675885638 is a wasteful number, since it uses less digits than its factorization.

2585675885638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65351.

The product of its digits is 3870720000, while the sum is 76.

The spelling of 2585675885638 in words is "two trillion, five hundred eighty-five billion, six hundred seventy-five million, eight hundred eighty-five thousand, six hundred thirty-eight".