187157468689 has 9 divisors (see below), whose sum is σ = 187868347401. Its totient is φ = 186449274660.

The previous prime is 187157468683. The next prime is 187157468749. The reversal of 187157468689 is 986864751781.

The square root of 187157468689 is 432617.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 187157468689 - 2⁵ = 187157468657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (187157468683) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 143195574 + ... + 143196880.

Almost surely, 2^187157468689 is an apocalyptic number.

187157468689 is the 432617-th square number.

187157468689 is the 216309-th centered octagonal number.

It is an amenable number.

187157468689 is a deficient number, since it is larger than the sum of its proper divisors (710878712).

187157468689 is an frugal number, since it uses more digits than its factorization.

187157468689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3276 (or 1638 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 70.

The spelling of 187157468689 in words is "one hundred eighty-seven billion, one hundred fifty-seven million, four hundred sixty-eight thousand, six hundred eighty-nine".