22013378718 has 16 divisors (see below), whose sum is σ = 44100020496. Its totient is φ = 7325582400.

The previous prime is 22013378711. The next prime is 22013378719. The reversal of 22013378718 is 81787331022.

It is a self number, because there is not a number n which added to its sum of digits gives 22013378718.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22013378711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3048721 + ... + 3055932.

It is an arithmetic number, because the mean of its divisors is an integer number (2756251281).

Almost surely, 2^22013378718 is an apocalyptic number.

22013378718 is an abundant number, since it is smaller than the sum of its proper divisors (22086641778).

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

22013378718 is a wasteful number, since it uses less digits than its factorization.

22013378718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6105259.

The product of its (nonzero) digits is 112896, while the sum is 42.

The spelling of 22013378718 in words is "twenty-two billion, thirteen million, three hundred seventy-eight thousand, seven hundred eighteen".