187971382896 has 80 divisors (see below), whose sum is σ = 548004389760. Its totient is φ = 54996847360.

The previous prime is 187971382889. The next prime is 187971382897. The reversal of 187971382896 is 698283179781.

It is a self number, because there is not a number n which added to its sum of digits gives 187971382896.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187971382897) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6122730 + ... + 6153353.

It is an arithmetic number, because the mean of its divisors is an integer number (6850054872).

Almost surely, 2^187971382896 is an apocalyptic number.

187971382896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

187971382896 is an abundant number, since it is smaller than the sum of its proper divisors (360033006864).

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

187971382896 is a wasteful number, since it uses less digits than its factorization.

187971382896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12276134 (or 12276128 counting only the distinct ones).

The product of its digits is 73156608, while the sum is 69.

The spelling of 187971382896 in words is "one hundred eighty-seven billion, nine hundred seventy-one million, three hundred eighty-two thousand, eight hundred ninety-six".