22578549979 has 2 divisors, whose sum is σ = 22578549980. Its totient is φ = 22578549978.

The previous prime is 22578549967. The next prime is 22578550021. The reversal of 22578549979 is 97994587522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22578549979 - 2²⁹ = 22041679067 is a prime.

It is not a weakly prime, because it can be changed into another prime (22578549379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11289274989 + 11289274990.

It is an arithmetic number, because the mean of its divisors is an integer number (11289274990).

Almost surely, 2^22578549979 is an apocalyptic number.

22578549979 is a deficient number, since it is larger than the sum of its proper divisors (1).

22578549979 is an equidigital number, since it uses as much as digits as its factorization.

22578549979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 114307200, while the sum is 67.

The spelling of 22578549979 in words is "twenty-two billion, five hundred seventy-eight million, five hundred forty-nine thousand, nine hundred seventy-nine".