22128747718 has 32 divisors (see below), whose sum is σ = 43182927360. Its totient is φ = 8246736960.

The previous prime is 22128747671. The next prime is 22128747721. The reversal of 22128747718 is 81774782122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3120223 + ... + 3127306.

It is an arithmetic number, because the mean of its divisors is an integer number (1349466480).

Almost surely, 2^22128747718 is an apocalyptic number.

22128747718 is a deficient number, since it is larger than the sum of its proper divisors (21054179642).

22128747718 is a wasteful number, since it uses less digits than its factorization.

22128747718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6247572.

The product of its digits is 702464, while the sum is 49.

The spelling of 22128747718 in words is "twenty-two billion, one hundred twenty-eight million, seven hundred forty-seven thousand, seven hundred eighteen".