23715743497 has 4 divisors (see below), whose sum is σ = 23960235796. Its totient is φ = 23471251200.

The previous prime is 23715743483. The next prime is 23715743521. The reversal of 23715743497 is 79434751732.

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 11388304656 + 12327438841 = 106716^2 + 111029^2 .

It is a cyclic number.

It is not a de Polignac number, because 23715743497 - 2²³ = 23707354889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23715743477) 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, 122246004 + ... + 122246197.

It is an arithmetic number, because the mean of its divisors is an integer number (5990058949).

Almost surely, 2^23715743497 is an apocalyptic number.

It is an amenable number.

23715743497 is a deficient number, since it is larger than the sum of its proper divisors (244492299).

23715743497 is an equidigital number, since it uses as much as digits as its factorization.

23715743497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244492298.

The product of its digits is 4445280, while the sum is 52.

The spelling of 23715743497 in words is "twenty-three billion, seven hundred fifteen million, seven hundred forty-three thousand, four hundred ninety-seven".