27513900025138 has 4 divisors (see below), whose sum is σ = 41270850037710. Its totient is φ = 13756950012568.

The previous prime is 27513900025057. The next prime is 27513900025153. The reversal of 27513900025138 is 83152000931572.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27178257078729 + 335642946409 = 5213277^2 + 579347^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6878475006283 + ... + 6878475006286.

Almost surely, 2^{27513900025138} is an apocalyptic number.

27513900025138 is a deficient number, since it is larger than the sum of its proper divisors (13756950012572).

27513900025138 is a wasteful number, since it uses less digits than its factorization.

27513900025138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13756950012571.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 27513900025138 in words is "twenty-seven trillion, five hundred thirteen billion, nine hundred million, twenty-five thousand, one hundred thirty-eight".