187987340736 has 84 divisors (see below), whose sum is σ = 580280390872. Its totient is φ = 57842256384.

The previous prime is 187987340707. The next prime is 187987340753. The reversal of 187987340736 is 637043789781.

187987340736 is a `hidden beast` number, since 187 + 9 + 87 + 340 + 7 + 36 = 666.

187987340736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 12545086 + ... + 12560061.

Almost surely, 2^187987340736 is an apocalyptic number.

187987340736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

187987340736 is an abundant number, since it is smaller than the sum of its proper divisors (392293050136).

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

187987340736 is a wasteful number, since it uses less digits than its factorization.

187987340736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25105178 (or 25105165 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 63.

The spelling of 187987340736 in words is "one hundred eighty-seven billion, nine hundred eighty-seven million, three hundred forty thousand, seven hundred thirty-six".