22978992798 has 24 divisors (see below), whose sum is σ = 51504640200. Its totient is φ = 7395537744.

The previous prime is 22978992793. The next prime is 22978992811. The reversal of 22978992798 is 89729987922.

It is a super-2 number, since 2×22978992798² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22978992791) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22010008 + ... + 22011051.

It is an arithmetic number, because the mean of its divisors is an integer number (2146026675).

Almost surely, 2^22978992798 is an apocalyptic number.

22978992798 is an abundant number, since it is smaller than the sum of its proper divisors (28525647402).

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

22978992798 is a wasteful number, since it uses less digits than its factorization.

22978992798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44021096 (or 44021093 counting only the distinct ones).

The product of its digits is 164602368, while the sum is 72.

The spelling of 22978992798 in words is "twenty-two billion, nine hundred seventy-eight million, nine hundred ninety-two thousand, seven hundred ninety-eight".