23218790412 has 48 divisors (see below), whose sum is σ = 55671033600. Its totient is φ = 7526411712.

The previous prime is 23218790411. The next prime is 23218790443. The reversal of 23218790412 is 21409781232.

It is a super-2 number, since 2×23218790412² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23218790411) 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, 887089 + ... + 912887.

It is an arithmetic number, because the mean of its divisors is an integer number (1159813200).

Almost surely, 2^23218790412 is an apocalyptic number.

It is an amenable number.

23218790412 is an abundant number, since it is smaller than the sum of its proper divisors (32452243188).

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

23218790412 is a wasteful number, since it uses less digits than its factorization.

23218790412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27870 (or 27868 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 23218790412 in words is "twenty-three billion, two hundred eighteen million, seven hundred ninety thousand, four hundred twelve".