22391127816923 has 4 divisors (see below), whose sum is σ = 23569608228360. Its totient is φ = 21212647405488.

The previous prime is 22391127816919. The next prime is 22391127816931. The reversal of 22391127816923 is 32961872119322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22391127816923 - 2² = 22391127816919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22391127816973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 589240205690 + ... + 589240205727.

It is an arithmetic number, because the mean of its divisors is an integer number (5892402057090).

Almost surely, 2^{22391127816923} is an apocalyptic number.

22391127816923 is a deficient number, since it is larger than the sum of its proper divisors (1178480411437).

22391127816923 is a wasteful number, since it uses less digits than its factorization.

22391127816923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178480411436.

The product of its digits is 3919104, while the sum is 56.

The spelling of 22391127816923 in words is "twenty-two trillion, three hundred ninety-one billion, one hundred twenty-seven million, eight hundred sixteen thousand, nine hundred twenty-three".