188445134625 has 64 divisors (see below), whose sum is σ = 342181711872. Its totient is φ = 91339992000.

The previous prime is 188445134621. The next prime is 188445134651. The reversal of 188445134625 is 526431544881.

It is not a de Polignac number, because 188445134625 - 2² = 188445134621 is a prime.

It is not an unprimeable number, because it can be changed into a prime (188445134621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23949942 + ... + 23957808.

It is an arithmetic number, because the mean of its divisors is an integer number (5346589248).

Almost surely, 2^188445134625 is an apocalyptic number.

188445134625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

188445134625 is a deficient number, since it is larger than the sum of its proper divisors (153736577247).

188445134625 is a wasteful number, since it uses less digits than its factorization.

188445134625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13703 (or 13693 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 51.

The spelling of 188445134625 in words is "one hundred eighty-eight billion, four hundred forty-five million, one hundred thirty-four thousand, six hundred twenty-five".