18138962594325 has 24 divisors (see below), whose sum is σ = 30035259540000. Its totient is φ = 9659433367360.

The previous prime is 18138962594321. The next prime is 18138962594351. The reversal of 18138962594325 is 52349526983181.

It is not a de Polignac number, because 18138962594325 - 2² = 18138962594321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18138962594321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 183450450 + ... + 183549299.

It is an arithmetic number, because the mean of its divisors is an integer number (1251469147500).

Almost surely, 2^{18138962594325} is an apocalyptic number.

18138962594325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18138962594325 is a deficient number, since it is larger than the sum of its proper divisors (11896296945675).

18138962594325 is a wasteful number, since it uses less digits than its factorization.

18138962594325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367000421 (or 367000416 counting only the distinct ones).

The product of its digits is 111974400, while the sum is 66.

The spelling of 18138962594325 in words is "eighteen trillion, one hundred thirty-eight billion, nine hundred sixty-two million, five hundred ninety-four thousand, three hundred twenty-five".