23648723919 has 12 divisors (see below), whose sum is σ = 36168636816. Its totient is φ = 14838414912.

The previous prime is 23648723909. The next prime is 23648723941. The reversal of 23648723919 is 91932784632.

It is not a de Polignac number, because 23648723919 - 2⁵ = 23648723887 is a prime.

It is a super-2 number, since 2×23648723919² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23648723909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77283259 + ... + 77283564.

It is an arithmetic number, because the mean of its divisors is an integer number (3014053068).

Almost surely, 2^23648723919 is an apocalyptic number.

23648723919 is a deficient number, since it is larger than the sum of its proper divisors (12519912897).

23648723919 is a wasteful number, since it uses less digits than its factorization.

23648723919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154566846 (or 154566843 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The spelling of 23648723919 in words is "twenty-three billion, six hundred forty-eight million, seven hundred twenty-three thousand, nine hundred nineteen".