23612563697 has 2 divisors, whose sum is σ = 23612563698. Its totient is φ = 23612563696.

The previous prime is 23612563621. The next prime is 23612563717. The reversal of 23612563697 is 79636521632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15552833521 + 8059730176 = 124711^2 + 89776^2 .

It is a cyclic number.

It is not a de Polignac number, because 23612563697 - 2¹⁸ = 23612301553 is a prime.

It is not a weakly prime, because it can be changed into another prime (23612566697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11806281848 + 11806281849.

It is an arithmetic number, because the mean of its divisors is an integer number (11806281849).

Almost surely, 2^23612563697 is an apocalyptic number.

It is an amenable number.

23612563697 is a deficient number, since it is larger than the sum of its proper divisors (1).

23612563697 is an equidigital number, since it uses as much as digits as its factorization.

23612563697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2449440, while the sum is 50.

The spelling of 23612563697 in words is "twenty-three billion, six hundred twelve million, five hundred sixty-three thousand, six hundred ninety-seven".