23886361857 has 4 divisors (see below), whose sum is σ = 31848482480. Its totient is φ = 15924241236.

The previous prime is 23886361847. The next prime is 23886361871. The reversal of 23886361857 is 75816368832.

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 23886361857 - 2⁷ = 23886361729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23886361797 and 23886361806.

It is not an unprimeable number, because it can be changed into a prime (23886361817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3981060307 + ... + 3981060312.

It is an arithmetic number, because the mean of its divisors is an integer number (7962120620).

Almost surely, 2^23886361857 is an apocalyptic number.

It is an amenable number.

23886361857 is a deficient number, since it is larger than the sum of its proper divisors (7962120623).

23886361857 is an equidigital number, since it uses as much as digits as its factorization.

23886361857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7962120622.

The product of its digits is 11612160, while the sum is 57.

The spelling of 23886361857 in words is "twenty-three billion, eight hundred eighty-six million, three hundred sixty-one thousand, eight hundred fifty-seven".