22865120775 has 48 divisors (see below), whose sum is σ = 48004665600. Its totient is φ = 10452624480.

The previous prime is 22865120743. The next prime is 22865120777. The reversal of 22865120775 is 57702156822.

It is not a de Polignac number, because 22865120775 - 2⁵ = 22865120743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 22865120775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22865120777) 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 in 47 ways as a sum of consecutive naturals, for example, 2414865 + ... + 2424314.

It is an arithmetic number, because the mean of its divisors is an integer number (1000097200).

Almost surely, 2^22865120775 is an apocalyptic number.

22865120775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22865120775 is an abundant number, since it is smaller than the sum of its proper divisors (25139544825).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22865120775 is a wasteful number, since it uses less digits than its factorization.

22865120775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4839205 (or 4839194 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 22865120775 in words is "twenty-two billion, eight hundred sixty-five million, one hundred twenty thousand, seven hundred seventy-five".