186135791136225 has 72 divisors (see below), whose sum is σ = 358431022473120. Its totient is φ = 84985465985280.

The previous prime is 186135791136203. The next prime is 186135791136227. The reversal of 186135791136225 is 522631197531681.

It is not a de Polignac number, because 186135791136225 - 2⁹ = 186135791135713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (186135791136227) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 28330507 + ... + 34276656.

It is an arithmetic number, because the mean of its divisors is an integer number (4978208645460).

Almost surely, 2^{186135791136225} is an apocalyptic number.

186135791136225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

186135791136225 is a deficient number, since it is larger than the sum of its proper divisors (172295231336895).

186135791136225 is a wasteful number, since it uses less digits than its factorization.

186135791136225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62607999 (or 62607987 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 60.

The spelling of 186135791136225 in words is "one hundred eighty-six trillion, one hundred thirty-five billion, seven hundred ninety-one million, one hundred thirty-six thousand, two hundred twenty-five".