186868592089 has 9 divisors (see below), whose sum is σ = 187682643967. Its totient is φ = 186058061464.

The previous prime is 186868592047. The next prime is 186868592147. The reversal of 186868592089 is 980295868681.

The square root of 186868592089 is 432283.

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

It can be written as a sum of positive squares in only one way, i.e., 12295039689 + 174573552400 = 110883^2 + 417820^2 .

It is not a de Polignac number, because 186868592089 - 2⁷ = 186868591961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (186868592189) 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, 116283324 + ... + 116284930.

Almost surely, 2^186868592089 is an apocalyptic number.

186868592089 is the 432283-rd square number.

186868592089 is the 216142-nd centered octagonal number.

It is an amenable number.

186868592089 is a deficient number, since it is larger than the sum of its proper divisors (814051878).

186868592089 is an frugal number, since it uses more digits than its factorization.

186868592089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3752 (or 1876 counting only the distinct ones).

The product of its (nonzero) digits is 119439360, while the sum is 70.

The spelling of 186868592089 in words is "one hundred eighty-six billion, eight hundred sixty-eight million, five hundred ninety-two thousand, eighty-nine".