23021377568 has 72 divisors (see below), whose sum is σ = 53845005312. Its totient is φ = 9656352384.

The previous prime is 23021377537. The next prime is 23021377633. The reversal of 23021377568 is 86577312032.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82496 + ... + 229887.

It is an arithmetic number, because the mean of its divisors is an integer number (747847296).

Almost surely, 2^23021377568 is an apocalyptic number.

23021377568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23021377568 is an abundant number, since it is smaller than the sum of its proper divisors (30823627744).

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

23021377568 is a wasteful number, since it uses less digits than its factorization.

23021377568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312454 (or 312439 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 23021377568 in words is "twenty-three billion, twenty-one million, three hundred seventy-seven thousand, five hundred sixty-eight".