22798384578 has 30 divisors (see below), whose sum is σ = 51089575779. Its totient is φ = 7598820924.

The previous prime is 22798384559. The next prime is 22798384579. The reversal of 22798384578 is 87548389722.

22798384578 is a `hidden beast` number, since 2 + 27 + 9 + 8 + 38 + 4 + 578 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11399192289 + 11399192289 = 106767^2 + 106767^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=106767.

It is not an unprimeable number, because it can be changed into a prime (22798384579) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1915875 + ... + 1927737.

Almost surely, 2^22798384578 is an apocalyptic number.

22798384578 is an abundant number, since it is smaller than the sum of its proper divisors (28291191201).

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

22798384578 is an frugal number, since it uses more digits than its factorization.

22798384578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23740 (or 11868 counting only the distinct ones).

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

The spelling of 22798384578 in words is "twenty-two billion, seven hundred ninety-eight million, three hundred eighty-four thousand, five hundred seventy-eight".