22723139865 has 16 divisors (see below), whose sum is σ = 36515793600. Its totient is φ = 12066084672.

The previous prime is 22723139837. The next prime is 22723139909. The reversal of 22723139865 is 56893132722.

It is not a de Polignac number, because 22723139865 - 2⁶ = 22723139801 is a prime.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 3304155 + ... + 3311024.

It is an arithmetic number, because the mean of its divisors is an integer number (2282237100).

Almost surely, 2^22723139865 is an apocalyptic number.

It is an amenable number.

22723139865 is a deficient number, since it is larger than the sum of its proper divisors (13792653735).

22723139865 is a wasteful number, since it uses less digits than its factorization.

22723139865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6615416.

The product of its digits is 1088640, while the sum is 48.

The spelling of 22723139865 in words is "twenty-two billion, seven hundred twenty-three million, one hundred thirty-nine thousand, eight hundred sixty-five".