8091633649 has 16 divisors (see below), whose sum is σ = 8999112960. Its totient is φ = 7212965760.

The previous prime is 8091633631. The next prime is 8091633653. The reversal of 8091633649 is 9463361908.

It is not a de Polignac number, because 8091633649 - 2⁷ = 8091633521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8091633619) 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 15 ways as a sum of consecutive naturals, for example, 1382872 + ... + 1388710.

It is an arithmetic number, because the mean of its divisors is an integer number (562444560).

Almost surely, 2^8091633649 is an apocalyptic number.

It is an amenable number.

8091633649 is a deficient number, since it is larger than the sum of its proper divisors (907479311).

8091633649 is a wasteful number, since it uses less digits than its factorization.

8091633649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8280.

The product of its (nonzero) digits is 839808, while the sum is 49.

The square root of 8091633649 is about 89953.5082639916. The cubic root of 8091633649 is about 2007.6071662426.

The spelling of 8091633649 in words is "eight billion, ninety-one million, six hundred thirty-three thousand, six hundred forty-nine".