23939517587039 has 2 divisors, whose sum is σ = 23939517587040. Its totient is φ = 23939517587038.

The previous prime is 23939517586981. The next prime is 23939517587143. The reversal of 23939517587039 is 93078571593932.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23939517587039 - 2³² = 23935222619743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23939517587639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11969758793519 + 11969758793520.

It is an arithmetic number, because the mean of its divisors is an integer number (11969758793520).

Almost surely, 2^{23939517587039} is an apocalyptic number.

23939517587039 is a deficient number, since it is larger than the sum of its proper divisors (1).

23939517587039 is an equidigital number, since it uses as much as digits as its factorization.

23939517587039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 385786800, while the sum is 71.

The spelling of 23939517587039 in words is "twenty-three trillion, nine hundred thirty-nine billion, five hundred seventeen million, five hundred eighty-seven thousand, thirty-nine".