108680330889 has 81 divisors (see below), whose sum is σ = 173790225063. Its totient is φ = 65416482144.

The previous prime is 108680330881. The next prime is 108680330903. The reversal of 108680330889 is 988033086801.

It is a happy number.

The square root of 108680330889 is 329667.

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., 16076972025 + 92603358864 = 126795^2 + 304308^2 .

It is not a de Polignac number, because 108680330889 - 2³ = 108680330881 is a prime.

It is a super-2 number, since 2×108680330889² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (108680330881) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 1015703974 + ... + 1015704080.

Almost surely, 2^108680330889 is an apocalyptic number.

108680330889 is the 329667-th square number.

108680330889 is the 164834-th centered octagonal number.

It is an amenable number.

108680330889 is a deficient number, since it is larger than the sum of its proper divisors (65109894174).

108680330889 is an equidigital number, since it uses as much as digits as its factorization.

108680330889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

It can be divided in two parts, 108680 and 330889, that added together give a square (439569 = 663²).

The spelling of 108680330889 in words is "one hundred eight billion, six hundred eighty million, three hundred thirty thousand, eight hundred eighty-nine".