18889122695005 has 4 divisors (see below), whose sum is σ = 22666947234012. Its totient is φ = 15111298156000.

The previous prime is 18889122694999. The next prime is 18889122695077. The reversal of 18889122695005 is 50059622198881.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4994165666169 + 13894957028836 = 2234763^2 + 3727594^2 .

It is not a de Polignac number, because 18889122695005 - 2³ = 18889122694997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1888912269496 + ... + 1888912269505.

It is an arithmetic number, because the mean of its divisors is an integer number (5666736808503).

Almost surely, 2^{18889122695005} is an apocalyptic number.

It is an amenable number.

18889122695005 is a deficient number, since it is larger than the sum of its proper divisors (3777824539007).

18889122695005 is an equidigital number, since it uses as much as digits as its factorization.

18889122695005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3777824539006.

The product of its (nonzero) digits is 24883200, while the sum is 64.

The spelling of 18889122695005 in words is "eighteen trillion, eight hundred eighty-nine billion, one hundred twenty-two million, six hundred ninety-five thousand, five".