22777889921998 has 32 divisors (see below), whose sum is σ = 34738190438400. Its totient is φ = 11200581231840.

The previous prime is 22777889921987. The next prime is 22777889922023. The reversal of 22777889921998 is 89912998877722.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10980565 + ... + 12889087.

It is an arithmetic number, because the mean of its divisors is an integer number (1085568451200).

Almost surely, 2^{22777889921998} is an apocalyptic number.

22777889921998 is a deficient number, since it is larger than the sum of its proper divisors (11960300516402).

22777889921998 is a wasteful number, since it uses less digits than its factorization.

22777889921998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909072.

The product of its digits is 9217732608, while the sum is 88.

The spelling of 22777889921998 in words is "twenty-two trillion, seven hundred seventy-seven billion, eight hundred eighty-nine million, nine hundred twenty-one thousand, nine hundred ninety-eight".