22497693312 has 256 divisors, whose sum is σ = 63452160000. Its totient is φ = 7052537856.

The previous prime is 22497693301. The next prime is 22497693343. The reversal of 22497693312 is 21339679422.

It is a super-2 number, since 2×22497693312² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 94132489 + ... + 94132727.

It is an arithmetic number, because the mean of its divisors is an integer number (247860000).

Almost surely, 2^22497693312 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 22497693312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31726080000).

22497693312 is an abundant number, since it is smaller than the sum of its proper divisors (40954466688).

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

22497693312 is a wasteful number, since it uses less digits than its factorization.

22497693312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 459 counting only the distinct ones).

The product of its digits is 979776, while the sum is 48.

The spelling of 22497693312 in words is "twenty-two billion, four hundred ninety-seven million, six hundred ninety-three thousand, three hundred twelve".