23693644403 has 24 divisors (see below), whose sum is σ = 28309088304. Its totient is φ = 19696818240.

The previous prime is 23693644391. The next prime is 23693644417. The reversal of 23693644403 is 30444639632.

It is not a de Polignac number, because 23693644403 - 2⁸ = 23693644147 is a prime.

It is a super-2 number, since 2×23693644403² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23693644493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97925 + ... + 238697.

It is an arithmetic number, because the mean of its divisors is an integer number (1179545346).

Almost surely, 2^23693644403 is an apocalyptic number.

23693644403 is a deficient number, since it is larger than the sum of its proper divisors (4615443901).

23693644403 is a wasteful number, since it uses less digits than its factorization.

23693644403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140915 (or 140904 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 44.

It can be divided in two parts, 236 and 93644403, that added together give a palindrome (93644639).

The spelling of 23693644403 in words is "twenty-three billion, six hundred ninety-three million, six hundred forty-four thousand, four hundred three".