23922620544 has 128 divisors (see below), whose sum is σ = 65765177280. Its totient is φ = 7698862080.

The previous prime is 23922620543. The next prime is 23922620549. The reversal of 23922620544 is 44502622932.

It is a tau number, because it is divible by the number of its divisors (128).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (23922620543) 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, 1854822 + ... + 1867674.

Almost surely, 2^23922620544 is an apocalyptic number.

23922620544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23922620544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32882588640).

23922620544 is an abundant number, since it is smaller than the sum of its proper divisors (41842556736).

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

23922620544 is a wasteful number, since it uses less digits than its factorization.

23922620544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13038 (or 13026 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 23922620544 in words is "twenty-three billion, nine hundred twenty-two million, six hundred twenty thousand, five hundred forty-four".