22312998864 has 120 divisors (see below), whose sum is σ = 67290193152. Its totient is φ = 6861323520.

The previous prime is 22312998857. The next prime is 22312998889. The reversal of 22312998864 is 46889921322.

It is a super-3 number, since 3×22312998864³ (a number of 32 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 22312998864.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4578349 + ... + 4583219.

Almost surely, 2^22312998864 is an apocalyptic number.

22312998864 is a gapful number since it is divisible by the number (24) 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 22312998864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33645096576).

22312998864 is an abundant number, since it is smaller than the sum of its proper divisors (44977194288).

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

22312998864 is a wasteful number, since it uses less digits than its factorization.

22312998864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7345 (or 7336 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The spelling of 22312998864 in words is "twenty-two billion, three hundred twelve million, nine hundred ninety-eight thousand, eight hundred sixty-four".