8179098891 has 16 divisors (see below), whose sum is σ = 11510745600. Its totient is φ = 5151657888.

The previous prime is 8179098859. The next prime is 8179098919. The reversal of 8179098891 is 1988909718.

It is not a de Polignac number, because 8179098891 - 2⁵ = 8179098859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8179098791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174576 + ... + 216413.

It is an arithmetic number, because the mean of its divisors is an integer number (719421600).

Almost surely, 2^8179098891 is an apocalyptic number.

8179098891 is a deficient number, since it is larger than the sum of its proper divisors (3331646709).

8179098891 is a wasteful number, since it uses less digits than its factorization.

8179098891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391378.

The product of its (nonzero) digits is 2612736, while the sum is 60.

The square root of 8179098891 is about 90438.3706786008. The cubic root of 8179098891 is about 2014.8148960451.

The spelling of 8179098891 in words is "eight billion, one hundred seventy-nine million, ninety-eight thousand, eight hundred ninety-one".