23935237313257 has 4 divisors (see below), whose sum is σ = 24073591286340. Its totient is φ = 23796883340176.

The previous prime is 23935237313213. The next prime is 23935237313297. The reversal of 23935237313257 is 75231373253932.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12357080989696 + 11578156323561 = 3515264^2 + 3402669^2 .

It is a cyclic number.

It is not a de Polignac number, because 23935237313257 - 2⁷ = 23935237313129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23935237313198 and 23935237313207.

It is not an unprimeable number, because it can be changed into a prime (23935237313297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69176986282 + ... + 69176986627.

It is an arithmetic number, because the mean of its divisors is an integer number (6018397821585).

Almost surely, 2^{23935237313257} is an apocalyptic number.

It is an amenable number.

23935237313257 is a deficient number, since it is larger than the sum of its proper divisors (138353973083).

23935237313257 is a wasteful number, since it uses less digits than its factorization.

23935237313257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138353973082.

The product of its digits is 21432600, while the sum is 55.

The spelling of 23935237313257 in words is "twenty-three trillion, nine hundred thirty-five billion, two hundred thirty-seven million, three hundred thirteen thousand, two hundred fifty-seven".