23999871490057 has 2 divisors, whose sum is σ = 23999871490058. Its totient is φ = 23999871490056.

The previous prime is 23999871490043. The next prime is 23999871490229. The reversal of 23999871490057 is 75009417899932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23599668486601 + 400203003456 = 4857949^2 + 632616^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23999871490057 is a prime.

It is a super-3 number, since 3×23999871490057³ (a number of 41 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (23999871490757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11999935745028 + 11999935745029.

It is an arithmetic number, because the mean of its divisors is an integer number (11999935745029).

Almost surely, 2^{23999871490057} is an apocalyptic number.

It is an amenable number.

23999871490057 is a deficient number, since it is larger than the sum of its proper divisors (1).

23999871490057 is an equidigital number, since it uses as much as digits as its factorization.

23999871490057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 308629440, while the sum is 73.

The spelling of 23999871490057 in words is "twenty-three trillion, nine hundred ninety-nine billion, eight hundred seventy-one million, four hundred ninety thousand, fifty-seven".