22815860979 has 16 divisors (see below), whose sum is σ = 31006387872. Its totient is φ = 14918162688.

The previous prime is 22815860929. The next prime is 22815860981. The reversal of 22815860979 is 97906851822.

It is a happy number.

It is not a de Polignac number, because 22815860979 - 2⁹ = 22815860467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22815860929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 439207 + ... + 488399.

It is an arithmetic number, because the mean of its divisors is an integer number (1937899242).

Almost surely, 2^22815860979 is an apocalyptic number.

22815860979 is a deficient number, since it is larger than the sum of its proper divisors (8190526893).

22815860979 is a wasteful number, since it uses less digits than its factorization.

22815860979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52166.

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 22815860979 in words is "twenty-two billion, eight hundred fifteen million, eight hundred sixty thousand, nine hundred seventy-nine".