186378090912 has 192 divisors, whose sum is σ = 597875765760. Its totient is φ = 56126794752.

The previous prime is 186378090907. The next prime is 186378090931. The reversal of 186378090912 is 219090873681.

186378090912 is a `hidden beast` number, since 186 + 378 + 0 + 9 + 0 + 91 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 351378 + ... + 704430.

It is an arithmetic number, because the mean of its divisors is an integer number (3113936280).

Almost surely, 2^186378090912 is an apocalyptic number.

186378090912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 186378090912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298937882880).

186378090912 is an abundant number, since it is smaller than the sum of its proper divisors (411497674848).

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

186378090912 is a wasteful number, since it uses less digits than its factorization.

186378090912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353132 (or 353118 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The spelling of 186378090912 in words is "one hundred eighty-six billion, three hundred seventy-eight million, ninety thousand, nine hundred twelve".