18833108922369 has 81 divisors (see below), whose sum is σ = 31836545675337. Its totient is φ = 10696941214848.

The previous prime is 18833108922359. The next prime is 18833108922371. The reversal of 18833108922369 is 96322980133881.

The square root of 18833108922369 is 4339713.

It is a perfect power (a square), and thus also a powerful number.

18833108922369 is a `hidden beast` number, since 1 + 8 + 8 + 3 + 310 + 89 + 2 + 236 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 15231418535025 + 3601690387344 = 3902745^2 + 1897812^2 .

It is a de Polignac number, because none of the positive numbers 2^k-18833108922369 is a prime.

It is a super-2 number, since 2×18833108922369² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (18833108922359) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 17953392157 + ... + 17953393205.

Almost surely, 2^{18833108922369} is an apocalyptic number.

18833108922369 is the 4339713-rd square number.

18833108922369 is the 2169857-th centered octagonal number.

It is an amenable number.

18833108922369 is a deficient number, since it is larger than the sum of its proper divisors (13003436752968).

18833108922369 is an frugal number, since it uses more digits than its factorization.

18833108922369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512 (or 1256 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 63.

The spelling of 18833108922369 in words is "eighteen trillion, eight hundred thirty-three billion, one hundred eight million, nine hundred twenty-two thousand, three hundred sixty-nine".