108081186791 has 4 divisors (see below), whose sum is σ = 108353431992. Its totient is φ = 107808941592.

The previous prime is 108081186767. The next prime is 108081186797. The reversal of 108081186791 is 197681180801.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 108081186791 - 2¹⁰ = 108081185767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108081186797) 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 3 ways as a sum of consecutive naturals, for example, 136122005 + ... + 136122798.

It is an arithmetic number, because the mean of its divisors is an integer number (27088357998).

Almost surely, 2^108081186791 is an apocalyptic number.

108081186791 is a deficient number, since it is larger than the sum of its proper divisors (272245201).

108081186791 is an equidigital number, since it uses as much as digits as its factorization.

108081186791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272245200.

The product of its (nonzero) digits is 193536, while the sum is 50.

The spelling of 108081186791 in words is "one hundred eight billion, eighty-one million, one hundred eighty-six thousand, seven hundred ninety-one".