23631753640 has 32 divisors (see below), whose sum is σ = 58005214560. Its totient is φ = 8593364800.

The previous prime is 23631753637. The next prime is 23631753667. The reversal of 23631753640 is 4635713632.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 23631753593 and 23631753602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26853826 + ... + 26854705.

It is an arithmetic number, because the mean of its divisors is an integer number (1812662955).

Almost surely, 2^23631753640 is an apocalyptic number.

23631753640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23631753640 is an abundant number, since it is smaller than the sum of its proper divisors (34373460920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23631753640 is a wasteful number, since it uses less digits than its factorization.

23631753640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53708553 (or 53708549 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 40.

The spelling of 23631753640 in words is "twenty-three billion, six hundred thirty-one million, seven hundred fifty-three thousand, six hundred forty".