22191744869736 has 32 divisors (see below), whose sum is σ = 59747005419360. Its totient is φ = 6828229190592.

The previous prime is 22191744869719. The next prime is 22191744869743. The reversal of 22191744869736 is 63796844719122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35563693390 + ... + 35563694013.

It is an arithmetic number, because the mean of its divisors is an integer number (1867093919355).

Almost surely, 2^{22191744869736} is an apocalyptic number.

22191744869736 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

22191744869736 is an abundant number, since it is smaller than the sum of its proper divisors (37555260549624).

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

22191744869736 is a wasteful number, since it uses less digits than its factorization.

22191744869736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71127387425 (or 71127387421 counting only the distinct ones).

The product of its digits is 219469824, while the sum is 69.

The spelling of 22191744869736 in words is "twenty-two trillion, one hundred ninety-one billion, seven hundred forty-four million, eight hundred sixty-nine thousand, seven hundred thirty-six".