23928739293 has 4 divisors (see below), whose sum is σ = 31904985728. Its totient is φ = 15952492860.

The previous prime is 23928739223. The next prime is 23928739309. The reversal of 23928739293 is 39293782932.

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 not a de Polignac number, because 23928739293 - 2¹⁰ = 23928738269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23928739223) 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, 3988123213 + ... + 3988123218.

It is an arithmetic number, because the mean of its divisors is an integer number (7976246432).

Almost surely, 2^23928739293 is an apocalyptic number.

It is an amenable number.

23928739293 is a deficient number, since it is larger than the sum of its proper divisors (7976246435).

23928739293 is an equidigital number, since it uses as much as digits as its factorization.

23928739293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7976246434.

The product of its digits is 8817984, while the sum is 57.

The spelling of 23928739293 in words is "twenty-three billion, nine hundred twenty-eight million, seven hundred thirty-nine thousand, two hundred ninety-three".