22691902464 has 1320 divisors, whose sum is σ = 94874028480. Its totient is φ = 5255331840.

The previous prime is 22691902439. The next prime is 22691902477. The reversal of 22691902464 is 46420919622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1194310647 + ... + 1194310665.

It is an arithmetic number, because the mean of its divisors is an integer number (71874264).

Almost surely, 2^22691902464 is an apocalyptic number.

22691902464 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 22691902464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47437014240).

22691902464 is an abundant number, since it is smaller than the sum of its proper divisors (72182126016).

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

22691902464 is a wasteful number, since it uses less digits than its factorization.

22691902464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 22691902464 in words is "twenty-two billion, six hundred ninety-one million, nine hundred two thousand, four hundred sixty-four".