187996945525 has 24 divisors (see below), whose sum is σ = 233488214528. Its totient is φ = 150157800000.

The previous prime is 187996945511. The next prime is 187996945541. The reversal of 187996945525 is 525549699781.

It is not a de Polignac number, because 187996945525 - 2⁹ = 187996945013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67356880 + ... + 67359670.

Almost surely, 2^187996945525 is an apocalyptic number.

It is an amenable number.

187996945525 is a deficient number, since it is larger than the sum of its proper divisors (45491269003).

187996945525 is a wasteful number, since it uses less digits than its factorization.

187996945525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6133 (or 6128 counting only the distinct ones).

The product of its digits is 244944000, while the sum is 70.

The spelling of 187996945525 in words is "one hundred eighty-seven billion, nine hundred ninety-six million, nine hundred forty-five thousand, five hundred twenty-five".