7313307891 has 16 divisors (see below), whose sum is σ = 9809474976. Its totient is φ = 4846381056.

The previous prime is 7313307851. The next prime is 7313307893. The reversal of 7313307891 is 1987033137.

It is not a de Polignac number, because 7313307891 - 2⁷ = 7313307763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7313307893) 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 15 ways as a sum of consecutive naturals, for example, 836941 + ... + 845633.

It is an arithmetic number, because the mean of its divisors is an integer number (613092186).

Almost surely, 2^7313307891 is an apocalyptic number.

7313307891 is a deficient number, since it is larger than the sum of its proper divisors (2496167085).

7313307891 is a wasteful number, since it uses less digits than its factorization.

7313307891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10342.

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 7313307891 is about 85517.8805338392. The cubic root of 7313307891 is about 1941.0554970342.

The spelling of 7313307891 in words is "seven billion, three hundred thirteen million, three hundred seven thousand, eight hundred ninety-one".