23645652540 has 48 divisors (see below), whose sum is σ = 67005525888. Its totient is φ = 6229536064.

The previous prime is 23645652533. The next prime is 23645652643. The reversal of 23645652540 is 4525654632.

It is a junction number, because it is equal to n+sod(n) for n = 23645652492 and 23645652501.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2369082 + ... + 2379041.

It is an arithmetic number, because the mean of its divisors is an integer number (1395948456).

Almost surely, 2^23645652540 is an apocalyptic number.

23645652540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23645652540 is an abundant number, since it is smaller than the sum of its proper divisors (43359873348).

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

23645652540 is a wasteful number, since it uses less digits than its factorization.

23645652540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4748218 (or 4748216 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 42.

The spelling of 23645652540 in words is "twenty-three billion, six hundred forty-five million, six hundred fifty-two thousand, five hundred forty".