22288979478 has 96 divisors (see below), whose sum is σ = 47304345600. Its totient is φ = 6993423360.

The previous prime is 22288979459. The next prime is 22288979483. The reversal of 22288979478 is 87497988222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 112004823 + ... + 112005021.

It is an arithmetic number, because the mean of its divisors is an integer number (492753600).

Almost surely, 2^22288979478 is an apocalyptic number.

22288979478 is an abundant number, since it is smaller than the sum of its proper divisors (25015366122).

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

22288979478 is a wasteful number, since it uses less digits than its factorization.

22288979478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 421 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 66.

The spelling of 22288979478 in words is "twenty-two billion, two hundred eighty-eight million, nine hundred seventy-nine thousand, four hundred seventy-eight".