23531765922 has 128 divisors (see below), whose sum is σ = 60615475200. Its totient is φ = 6628117248.

The previous prime is 23531765897. The next prime is 23531765947. The reversal of 23531765922 is 22956713532.

23531765922 is a `hidden beast` number, since 2 + 3 + 53 + 1 + 7 + 6 + 592 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (23531765897) and next prime (23531765947).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9018154 + ... + 9020762.

It is an arithmetic number, because the mean of its divisors is an integer number (473558400).

Almost surely, 2^23531765922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23531765922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30307737600).

23531765922 is an abundant number, since it is smaller than the sum of its proper divisors (37083709278).

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

23531765922 is a wasteful number, since it uses less digits than its factorization.

23531765922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2957 (or 2951 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The spelling of 23531765922 in words is "twenty-three billion, five hundred thirty-one million, seven hundred sixty-five thousand, nine hundred twenty-two".