22379865865 has 32 divisors (see below), whose sum is σ = 31261038336. Its totient is φ = 15063874560.

The previous prime is 22379865829. The next prime is 22379865923. The reversal of 22379865865 is 56856897322.

It is a happy number.

It is not a de Polignac number, because 22379865865 - 2⁷ = 22379865737 is a prime.

It is a super-2 number, since 2×22379865865² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 518349 + ... + 559861.

It is an arithmetic number, because the mean of its divisors is an integer number (976907448).

Almost surely, 2^22379865865 is an apocalyptic number.

It is an amenable number.

22379865865 is a deficient number, since it is larger than the sum of its proper divisors (8881172471).

22379865865 is a wasteful number, since it uses less digits than its factorization.

22379865865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41809.

The product of its digits is 43545600, while the sum is 61.

The spelling of 22379865865 in words is "twenty-two billion, three hundred seventy-nine million, eight hundred sixty-five thousand, eight hundred sixty-five".