23717904797 has 4 divisors (see below), whose sum is σ = 24018131520. Its totient is φ = 23417678076.

The previous prime is 23717904779. The next prime is 23717904799. The reversal of 23717904797 is 79740971732.

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 23717904797 - 2⁸ = 23717904541 is a prime.

It is a super-2 number, since 2×23717904797² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23717904799) 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, 150113243 + ... + 150113400.

It is an arithmetic number, because the mean of its divisors is an integer number (6004532880).

Almost surely, 2^23717904797 is an apocalyptic number.

It is an amenable number.

23717904797 is a deficient number, since it is larger than the sum of its proper divisors (300226723).

23717904797 is an equidigital number, since it uses as much as digits as its factorization.

23717904797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300226722.

The product of its (nonzero) digits is 4667544, while the sum is 56.

The spelling of 23717904797 in words is "twenty-three billion, seven hundred seventeen million, nine hundred four thousand, seven hundred ninety-seven".