8119650891 has 32 divisors (see below), whose sum is σ = 12710186496. Its totient is φ = 4555584000.

The previous prime is 8119650853. The next prime is 8119650949. The reversal of 8119650891 is 1980569118.

It is not a de Polignac number, because 8119650891 - 2¹⁷ = 8119519819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8119650891.

It is not an unprimeable number, because it can be changed into a prime (8119650391) 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 31 ways as a sum of consecutive naturals, for example, 84415 + ... + 152856.

It is an arithmetic number, because the mean of its divisors is an integer number (397193328).

Almost surely, 2^8119650891 is an apocalyptic number.

8119650891 is a deficient number, since it is larger than the sum of its proper divisors (4590535605).

8119650891 is a wasteful number, since it uses less digits than its factorization.

8119650891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237363.

The product of its (nonzero) digits is 155520, while the sum is 48.

The square root of 8119650891 is about 90109.1054832973. The cubic root of 8119650891 is about 2009.9216070513.

The spelling of 8119650891 in words is "eight billion, one hundred nineteen million, six hundred fifty thousand, eight hundred ninety-one".