8479671591 has 4 divisors (see below), whose sum is σ = 11306228792. Its totient is φ = 5653114392.

The previous prime is 8479671547. The next prime is 8479671643. The reversal of 8479671591 is 1951769748.

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

It is not a de Polignac number, because 8479671591 - 2⁷ = 8479671463 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 (8479671091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1413278596 + ... + 1413278601.

It is an arithmetic number, because the mean of its divisors is an integer number (2826557198).

Almost surely, 2^8479671591 is an apocalyptic number.

8479671591 is a deficient number, since it is larger than the sum of its proper divisors (2826557201).

8479671591 is a wasteful number, since it uses less digits than its factorization.

8479671591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2826557200.

The product of its digits is 3810240, while the sum is 57.

The square root of 8479671591 is about 92085.1323015828. The cubic root of 8479671591 is about 2039.1993198169.

The spelling of 8479671591 in words is "eight billion, four hundred seventy-nine million, six hundred seventy-one thousand, five hundred ninety-one".