23764823021 has 16 divisors (see below), whose sum is σ = 25087487040. Its totient is φ = 22449467520.

The previous prime is 23764823009. The next prime is 23764823077. The reversal of 23764823021 is 12032846732.

It is a cyclic number.

It is not a de Polignac number, because 23764823021 - 2¹⁸ = 23764560877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23764822021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15916751 + ... + 15918243.

It is an arithmetic number, because the mean of its divisors is an integer number (1567967940).

Almost surely, 2^23764823021 is an apocalyptic number.

It is an amenable number.

23764823021 is a deficient number, since it is larger than the sum of its proper divisors (1322664019).

23764823021 is a wasteful number, since it uses less digits than its factorization.

23764823021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3356.

The product of its (nonzero) digits is 96768, while the sum is 38.

The spelling of 23764823021 in words is "twenty-three billion, seven hundred sixty-four million, eight hundred twenty-three thousand, twenty-one".