23704544137 has 4 divisors (see below), whose sum is σ = 23704942096. Its totient is φ = 23704146180.

The previous prime is 23704544131. The next prime is 23704544173. The reversal of 23704544137 is 73144540732.

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 23704544137 - 2¹¹ = 23704542089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23704544137.

It is not an unprimeable number, because it can be changed into a prime (23704544131) 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, 89583 + ... + 235444.

It is an arithmetic number, because the mean of its divisors is an integer number (5926235524).

Almost surely, 2^23704544137 is an apocalyptic number.

It is an amenable number.

23704544137 is a deficient number, since it is larger than the sum of its proper divisors (397959).

23704544137 is an equidigital number, since it uses as much as digits as its factorization.

23704544137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397958.

The product of its (nonzero) digits is 282240, while the sum is 40.

It can be divided in two parts, 237045 and 44137, that added together give a palindrome (281182).

The spelling of 23704544137 in words is "twenty-three billion, seven hundred four million, five hundred forty-four thousand, one hundred thirty-seven".