22809769920 has 168 divisors, whose sum is σ = 89664198624. Its totient is φ = 5213657088.

The previous prime is 22809769919. The next prime is 22809769937. The reversal of 22809769920 is 2996790822.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 545559 + ... + 585878.

It is an arithmetic number, because the mean of its divisors is an integer number (533715468).

Almost surely, 2^22809769920 is an apocalyptic number.

22809769920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22809769920 is an abundant number, since it is smaller than the sum of its proper divisors (66854428704).

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

22809769920 is a wasteful number, since it uses less digits than its factorization.

22809769920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131467 (or 1131454 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 22809769920 in words is "twenty-two billion, eight hundred nine million, seven hundred sixty-nine thousand, nine hundred twenty".