187797692816 has 20 divisors (see below), whose sum is σ = 364200356352. Its totient is φ = 93810504096.

The previous prime is 187797692749. The next prime is 187797692827. The reversal of 187797692816 is 618296797781.

187797692816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 187797692816.

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 3 ways as a sum of consecutive naturals, for example, 5503856 + ... + 5537871.

Almost surely, 2^187797692816 is an apocalyptic number.

187797692816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

187797692816 is a deficient number, since it is larger than the sum of its proper divisors (176402663536).

187797692816 is a wasteful number, since it uses less digits than its factorization.

187797692816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11042798 (or 11042792 counting only the distinct ones).

The product of its digits is 128024064, while the sum is 71.

The spelling of 187797692816 in words is "one hundred eighty-seven billion, seven hundred ninety-seven million, six hundred ninety-two thousand, eight hundred sixteen".