8091959986 has 16 divisors (see below), whose sum is σ = 13298227488. Its totient is φ = 3662375200.

The previous prime is 8091959923. The next prime is 8091960029. The reversal of 8091959986 is 6899591908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 784180 + ... + 794431.

It is an arithmetic number, because the mean of its divisors is an integer number (831139218).

Almost surely, 2^8091959986 is an apocalyptic number.

8091959986 is a deficient number, since it is larger than the sum of its proper divisors (5206267502).

8091959986 is a wasteful number, since it uses less digits than its factorization.

8091959986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578857.

The product of its (nonzero) digits is 12597120, while the sum is 64.

The square root of 8091959986 is about 89955.3221660620. The cubic root of 8091959986 is about 2007.6341549292.

The spelling of 8091959986 in words is "eight billion, ninety-one million, nine hundred fifty-nine thousand, nine hundred eighty-six".