23971583507 has 2 divisors, whose sum is σ = 23971583508. Its totient is φ = 23971583506.

The previous prime is 23971583479. The next prime is 23971583509. The reversal of 23971583507 is 70538517932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23971583507 - 2⁶ = 23971583443 is a prime.

Together with 23971583509, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23971583509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11985791753 + 11985791754.

It is an arithmetic number, because the mean of its divisors is an integer number (11985791754).

Almost surely, 2^23971583507 is an apocalyptic number.

23971583507 is a deficient number, since it is larger than the sum of its proper divisors (1).

23971583507 is an equidigital number, since it uses as much as digits as its factorization.

23971583507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1587600, while the sum is 50.

The spelling of 23971583507 in words is "twenty-three billion, nine hundred seventy-one million, five hundred eighty-three thousand, five hundred seven".