23715557312137 has 2 divisors, whose sum is σ = 23715557312138. Its totient is φ = 23715557312136.

The previous prime is 23715557312119. The next prime is 23715557312263. The reversal of 23715557312137 is 73121375551732.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13185765950841 + 10529791361296 = 3631221^2 + 3244964^2 .

It is a cyclic number.

It is not a de Polignac number, because 23715557312137 - 2²⁷ = 23715423094409 is a prime.

It is not a weakly prime, because it can be changed into another prime (23715557312437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11857778656068 + 11857778656069.

It is an arithmetic number, because the mean of its divisors is an integer number (11857778656069).

Almost surely, 2^{23715557312137} is an apocalyptic number.

It is an amenable number.

23715557312137 is a deficient number, since it is larger than the sum of its proper divisors (1).

23715557312137 is an equidigital number, since it uses as much as digits as its factorization.

23715557312137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4630500, while the sum is 52.

The spelling of 23715557312137 in words is "twenty-three trillion, seven hundred fifteen billion, five hundred fifty-seven million, three hundred twelve thousand, one hundred thirty-seven".