23985246137 has 4 divisors (see below), whose sum is σ = 24812323620. Its totient is φ = 23158168656.

The previous prime is 23985246133. The next prime is 23985246143. The reversal of 23985246137 is 73164258932.

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 12270214441 + 11715031696 = 110771^2 + 108236^2 .

It is a cyclic number.

It is not a de Polignac number, because 23985246137 - 2² = 23985246133 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23985246133) 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, 413538698 + ... + 413538755.

It is an arithmetic number, because the mean of its divisors is an integer number (6203080905).

Almost surely, 2^23985246137 is an apocalyptic number.

It is an amenable number.

23985246137 is a deficient number, since it is larger than the sum of its proper divisors (827077483).

23985246137 is an equidigital number, since it uses as much as digits as its factorization.

23985246137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827077482.

The product of its digits is 2177280, while the sum is 50.

The spelling of 23985246137 in words is "twenty-three billion, nine hundred eighty-five million, two hundred forty-six thousand, one hundred thirty-seven".