23120772808 has 64 divisors (see below), whose sum is σ = 50835093120. Its totient is φ = 9651571200.

The previous prime is 23120772791. The next prime is 23120772859. The reversal of 23120772808 is 80827702132.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1468498 + ... + 1484158.

It is an arithmetic number, because the mean of its divisors is an integer number (794298330).

Almost surely, 2^23120772808 is an apocalyptic number.

23120772808 is a gapful number since it is divisible by the number (28) 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 23120772808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25417546560).

23120772808 is an abundant number, since it is smaller than the sum of its proper divisors (27714320312).

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

23120772808 is a wasteful number, since it uses less digits than its factorization.

23120772808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16358 (or 16354 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The spelling of 23120772808 in words is "twenty-three billion, one hundred twenty million, seven hundred seventy-two thousand, eight hundred eight".