117671879342889 has 27 divisors (see below), whose sum is σ = 170237201949477. Its totient is φ = 78325015494816.

The previous prime is 117671879342827. The next prime is 117671879342921. The reversal of 117671879342889 is 988243978176711.

The square root of 117671879342889 is 10847667.

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

117671879342889 is a `hidden beast` number, since 1 + 1 + 7 + 6 + 7 + 187 + 9 + 3 + 428 + 8 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 21774514344489 + 95897364998400 = 4666317^2 + 9792720^2 .

It is not a de Polignac number, because 117671879342889 - 2⁷ = 117671879342761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117671879342389) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 23854017267 + ... + 23854022199.

Almost surely, 2^{117671879342889} is an apocalyptic number.

117671879342889 is the 10847667-th square number.

117671879342889 is the 5423834-th centered octagonal number.

It is an amenable number.

117671879342889 is a deficient number, since it is larger than the sum of its proper divisors (52565322606588).

117671879342889 is an frugal number, since it uses more digits than its factorization.

117671879342889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11338 (or 5669 counting only the distinct ones).

The product of its digits is 2048385024, while the sum is 81.

The spelling of 117671879342889 in words is "one hundred seventeen trillion, six hundred seventy-one billion, eight hundred seventy-nine million, three hundred forty-two thousand, eight hundred eighty-nine".