108656825679 has 8 divisors (see below), whose sum is σ = 160973075120. Its totient is φ = 72437883768.

The previous prime is 108656825659. The next prime is 108656825713. The reversal of 108656825679 is 976528656801.

108656825679 is a `hidden beast` number, since 1 + 0 + 8 + 6 + 5 + 68 + 2 + 567 + 9 = 666.

It is not a de Polignac number, because 108656825679 - 2²⁷ = 108522607951 is a prime.

It is a super-2 number, since 2×108656825679² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108656825659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2012163412 + ... + 2012163465.

It is an arithmetic number, because the mean of its divisors is an integer number (20121634390).

Almost surely, 2^108656825679 is an apocalyptic number.

108656825679 is a deficient number, since it is larger than the sum of its proper divisors (52316249441).

108656825679 is an equidigital number, since it uses as much as digits as its factorization.

108656825679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024326886 (or 4024326880 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 63.

The spelling of 108656825679 in words is "one hundred eight billion, six hundred fifty-six million, eight hundred twenty-five thousand, six hundred seventy-nine".