108157173789 has 24 divisors (see below), whose sum is σ = 176583145440. Its totient is φ = 58551250464.

The previous prime is 108157173769. The next prime is 108157173797. The reversal of 108157173789 is 987371751801.

It is not a de Polignac number, because 108157173789 - 2⁷ = 108157173661 is a prime.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108157173769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19359394 + ... + 19364979.

It is an arithmetic number, because the mean of its divisors is an integer number (7357631060).

Almost surely, 2^108157173789 is an apocalyptic number.

108157173789 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

108157173789 is a deficient number, since it is larger than the sum of its proper divisors (68425971651).

108157173789 is a wasteful number, since it uses less digits than its factorization.

108157173789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38724409 (or 38724402 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 57.

The spelling of 108157173789 in words is "one hundred eight billion, one hundred fifty-seven million, one hundred seventy-three thousand, seven hundred eighty-nine".