186891868932 has 12 divisors (see below), whose sum is σ = 436081027536. Its totient is φ = 62297289640.

The previous prime is 186891868931. The next prime is 186891868949. The reversal of 186891868932 is 239868198681.

186891868932 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (186891868931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7787161194 + ... + 7787161217.

It is an arithmetic number, because the mean of its divisors is an integer number (36340085628).

Almost surely, 2^186891868932 is an apocalyptic number.

186891868932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

186891868932 is an abundant number, since it is smaller than the sum of its proper divisors (249189158604).

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

186891868932 is a wasteful number, since it uses less digits than its factorization.

186891868932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15574322418 (or 15574322416 counting only the distinct ones).

The product of its digits is 71663616, while the sum is 69.

The spelling of 186891868932 in words is "one hundred eighty-six billion, eight hundred ninety-one million, eight hundred sixty-eight thousand, nine hundred thirty-two".