23400560056637 has 2 divisors, whose sum is σ = 23400560056638. Its totient is φ = 23400560056636.

The previous prime is 23400560056481. The next prime is 23400560056721. The reversal of 23400560056637 is 73665006500432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20253789177241 + 3146770879396 = 4500421^2 + 1773914^2 .

It is a cyclic number.

It is not a de Polignac number, because 23400560056637 - 2⁸ = 23400560056381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23400560056591 and 23400560056600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23400560056037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11700280028318 + 11700280028319.

It is an arithmetic number, because the mean of its divisors is an integer number (11700280028319).

Almost surely, 2^{23400560056637} is an apocalyptic number.

It is an amenable number.

23400560056637 is a deficient number, since it is larger than the sum of its proper divisors (1).

23400560056637 is an equidigital number, since it uses as much as digits as its factorization.

23400560056637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2721600, while the sum is 47.

The spelling of 23400560056637 in words is "twenty-three trillion, four hundred billion, five hundred sixty million, fifty-six thousand, six hundred thirty-seven".