187944880216 has 8 divisors (see below), whose sum is σ = 352396650420. Its totient is φ = 93972440104.

The previous prime is 187944880199. The next prime is 187944880223. The reversal of 187944880216 is 612088449781.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11746555006 + ... + 11746555021.

Almost surely, 2^187944880216 is an apocalyptic number.

It is an amenable number.

187944880216 is a deficient number, since it is larger than the sum of its proper divisors (164451770204).

187944880216 is a wasteful number, since it uses less digits than its factorization.

187944880216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23493110033 (or 23493110029 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 58.

The spelling of 187944880216 in words is "one hundred eighty-seven billion, nine hundred forty-four million, eight hundred eighty thousand, two hundred sixteen".