27317145237 has 16 divisors (see below), whose sum is σ = 37018318848. Its totient is φ = 17915005440.

The previous prime is 27317145227. The next prime is 27317145239. The reversal of 27317145237 is 73254171372.

It is not a de Polignac number, because 27317145237 - 2¹⁰ = 27317144213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27317145239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78964 + ... + 246717.

It is an arithmetic number, because the mean of its divisors is an integer number (2313644928).

Almost surely, 2^27317145237 is an apocalyptic number.

It is an amenable number.

27317145237 is a deficient number, since it is larger than the sum of its proper divisors (9701173611).

27317145237 is a wasteful number, since it uses less digits than its factorization.

27317145237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326140.

The product of its digits is 246960, while the sum is 42.

The spelling of 27317145237 in words is "twenty-seven billion, three hundred seventeen million, one hundred forty-five thousand, two hundred thirty-seven".