22281730875 has 24 divisors (see below), whose sum is σ = 40166535552. Its totient is φ = 11883589200.

The previous prime is 22281730873. The next prime is 22281730909. The reversal of 22281730875 is 57803718222.

It is not a de Polignac number, because 22281730875 - 2¹ = 22281730873 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 22281730875.

It is not an unprimeable number, because it can be changed into a prime (22281730871) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9901867 + ... + 9904116.

It is an arithmetic number, because the mean of its divisors is an integer number (1673605648).

Almost surely, 2^22281730875 is an apocalyptic number.

22281730875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22281730875 is a deficient number, since it is larger than the sum of its proper divisors (17884804677).

22281730875 is a wasteful number, since it uses less digits than its factorization.

22281730875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19806004 (or 19805991 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 22281730875 in words is "twenty-two billion, two hundred eighty-one million, seven hundred thirty thousand, eight hundred seventy-five".