22478913579 has 32 divisors (see below), whose sum is σ = 32099281920. Its totient is φ = 13967154432.

The previous prime is 22478913571. The next prime is 22478913643. The reversal of 22478913579 is 97531987422.

It is a happy number.

It is not a de Polignac number, because 22478913579 - 2³ = 22478913571 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (22478913571) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 260844 + ... + 336150.

It is an arithmetic number, because the mean of its divisors is an integer number (1003102560).

Almost surely, 2^22478913579 is an apocalyptic number.

22478913579 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

22478913579 is a deficient number, since it is larger than the sum of its proper divisors (9620368341).

22478913579 is a wasteful number, since it uses less digits than its factorization.

22478913579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75459.

The product of its digits is 7620480, while the sum is 57.

The spelling of 22478913579 in words is "twenty-two billion, four hundred seventy-eight million, nine hundred thirteen thousand, five hundred seventy-nine".