22488935778 has 12 divisors (see below), whose sum is σ = 48726027558. Its totient is φ = 7496311920.

The previous prime is 22488935761. The next prime is 22488935783. The reversal of 22488935778 is 87753988422.

It can be written as a sum of positive squares in only one way, i.e., 18216091089 + 4272844689 = 134967^2 + 65367^2 .

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 5 ways as a sum of consecutive naturals, for example, 624692643 + ... + 624692678.

Almost surely, 2^22488935778 is an apocalyptic number.

22488935778 is an abundant number, since it is smaller than the sum of its proper divisors (26237091780).

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

22488935778 is a wasteful number, since it uses less digits than its factorization.

22488935778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249385329 (or 1249385326 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 63.

The spelling of 22488935778 in words is "twenty-two billion, four hundred eighty-eight million, nine hundred thirty-five thousand, seven hundred seventy-eight".