22047193856 has 144 divisors (see below), whose sum is σ = 48289500000. Its totient is φ = 10006069248.

The previous prime is 22047193853. The next prime is 22047193859. The reversal of 22047193856 is 65839174022.

It is an interprime number because it is at equal distance from previous prime (22047193853) and next prime (22047193859).

It is a self number, because there is not a number n which added to its sum of digits gives 22047193856.

It is not an unprimeable number, because it can be changed into a prime (22047193853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21016820 + ... + 21017868.

It is an arithmetic number, because the mean of its divisors is an integer number (335343750).

It is a 1-persistent number, because it is pandigital, but 2⋅22047193856 = 44094387712 is not.

Almost surely, 2^22047193856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22047193856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24144750000).

22047193856 is an abundant number, since it is smaller than the sum of its proper divisors (26242306144).

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

22047193856 is a wasteful number, since it uses less digits than its factorization.

22047193856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262 (or 1248 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 22047193856 in words is "twenty-two billion, forty-seven million, one hundred ninety-three thousand, eight hundred fifty-six".