22912917612 has 96 divisors (see below), whose sum is σ = 57939779520. Its totient is φ = 7005757440.

The previous prime is 22912917593. The next prime is 22912917623. The reversal of 22912917612 is 21671921922.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26007412 + ... + 26008292.

It is an arithmetic number, because the mean of its divisors is an integer number (603539370).

Almost surely, 2^22912917612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22912917612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28969889760).

22912917612 is an abundant number, since it is smaller than the sum of its proper divisors (35026861908).

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

22912917612 is a wasteful number, since it uses less digits than its factorization.

22912917612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763 (or 1761 counting only the distinct ones).

The product of its digits is 54432, while the sum is 42.

The spelling of 22912917612 in words is "twenty-two billion, nine hundred twelve million, nine hundred seventeen thousand, six hundred twelve".