18106368084 has 54 divisors (see below), whose sum is σ = 53241349434. Its totient is φ = 5173247520.

The previous prime is 18106368083. The next prime is 18106368113. The reversal of 18106368084 is 48086360181.

It is a happy number.

18106368084 is a `hidden beast` number, since 1 + 8 + 1 + 0 + 636 + 8 + 0 + 8 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13780412100 + 4325955984 = 117390^2 + 65772^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18106368083) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5130427 + ... + 5133954.

Almost surely, 2^18106368084 is an apocalyptic number.

18106368084 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18106368084 is an abundant number, since it is smaller than the sum of its proper divisors (35134981350).

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

18106368084 is a wasteful number, since it uses less digits than its factorization.

18106368084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10264405 (or 10264393 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 18106368084 in words is "eighteen billion, one hundred six million, three hundred sixty-eight thousand, eighty-four".