22643256375 has 192 divisors, whose sum is σ = 44264263680. Its totient is φ = 11535696000.

The previous prime is 22643256359. The next prime is 22643256431. The reversal of 22643256375 is 57365234622.

22643256375 is a `hidden beast` number, since 2 + 2 + 6 + 4 + 3 + 2 + 5 + 637 + 5 = 666.

It is not a de Polignac number, because 22643256375 - 2⁴ = 22643256359 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 22643256375.

It is a congruent number.

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 191 ways as a sum of consecutive naturals, for example, 130885789 + ... + 130885961.

It is an arithmetic number, because the mean of its divisors is an integer number (230543040).

Almost surely, 2^22643256375 is an apocalyptic number.

22643256375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22643256375 is a deficient number, since it is larger than the sum of its proper divisors (21621007305).

22643256375 is a wasteful number, since it uses less digits than its factorization.

22643256375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373 (or 351 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 45.

The spelling of 22643256375 in words is "twenty-two billion, six hundred forty-three million, two hundred fifty-six thousand, three hundred seventy-five".