23705631057 has 4 divisors (see below), whose sum is σ = 31607508080. Its totient is φ = 15803754036.

The previous prime is 23705631023. The next prime is 23705631071. The reversal of 23705631057 is 75013650732.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23705631057 - 2¹⁹ = 23705106769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23705631097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3950938507 + ... + 3950938512.

It is an arithmetic number, because the mean of its divisors is an integer number (7901877020).

Almost surely, 2^23705631057 is an apocalyptic number.

It is an amenable number.

23705631057 is a deficient number, since it is larger than the sum of its proper divisors (7901877023).

23705631057 is an equidigital number, since it uses as much as digits as its factorization.

23705631057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7901877022.

The product of its (nonzero) digits is 132300, while the sum is 39.

The spelling of 23705631057 in words is "twenty-three billion, seven hundred five million, six hundred thirty-one thousand, fifty-seven".