18084715725 has 12 divisors (see below), whose sum is σ = 29900063456. Its totient is φ = 9645181680.

The previous prime is 18084715721. The next prime is 18084715741. The reversal of 18084715725 is 52751748081.

It is not a de Polignac number, because 18084715725 - 2² = 18084715721 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18084715721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120564697 + ... + 120564846.

Almost surely, 2^18084715725 is an apocalyptic number.

18084715725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18084715725 is a deficient number, since it is larger than the sum of its proper divisors (11815347731).

18084715725 is a wasteful number, since it uses less digits than its factorization.

18084715725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241129556 (or 241129551 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 48.

The spelling of 18084715725 in words is "eighteen billion, eighty-four million, seven hundred fifteen thousand, seven hundred twenty-five".