23755131617 has 4 divisors (see below), whose sum is σ = 27148721856. Its totient is φ = 20361541380.

The previous prime is 23755131613. The next prime is 23755131619. The reversal of 23755131617 is 71613155732.

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 a cyclic number.

It is not a de Polignac number, because 23755131617 - 2² = 23755131613 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23755131613) 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, 1696795109 + ... + 1696795122.

It is an arithmetic number, because the mean of its divisors is an integer number (6787180464).

Almost surely, 2^23755131617 is an apocalyptic number.

It is an amenable number.

23755131617 is a deficient number, since it is larger than the sum of its proper divisors (3393590239).

23755131617 is an equidigital number, since it uses as much as digits as its factorization.

23755131617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3393590238.

The product of its digits is 132300, while the sum is 41.

The spelling of 23755131617 in words is "twenty-three billion, seven hundred fifty-five million, one hundred thirty-one thousand, six hundred seventeen".