23518901073539 has 2 divisors, whose sum is σ = 23518901073540. Its totient is φ = 23518901073538.

The previous prime is 23518901073397. The next prime is 23518901073559. The reversal of 23518901073539 is 93537010981532.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23518901073539 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (23518901073559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11759450536769 + 11759450536770.

It is an arithmetic number, because the mean of its divisors is an integer number (11759450536770).

Almost surely, 2^{23518901073539} is an apocalyptic number.

23518901073539 is a deficient number, since it is larger than the sum of its proper divisors (1).

23518901073539 is an equidigital number, since it uses as much as digits as its factorization.

23518901073539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6123600, while the sum is 56.

The spelling of 23518901073539 in words is "twenty-three trillion, five hundred eighteen billion, nine hundred one million, seventy-three thousand, five hundred thirty-nine".