6709330091 has 4 divisors (see below), whose sum is σ = 6794258400. Its totient is φ = 6624401784.

The previous prime is 6709330079. The next prime is 6709330123. The reversal of 6709330091 is 1900339076.

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

It is a cyclic number.

It is not a de Polignac number, because 6709330091 - 2¹⁸ = 6709067947 is a prime.

It is a super-2 number, since 2×6709330091² = 90030220539996136562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6709030091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42464036 + ... + 42464193.

It is an arithmetic number, because the mean of its divisors is an integer number (1698564600).

Almost surely, 2^6709330091 is an apocalyptic number.

6709330091 is a deficient number, since it is larger than the sum of its proper divisors (84928309).

6709330091 is an equidigital number, since it uses as much as digits as its factorization.

6709330091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84928308.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 6709330091 is about 81910.5004929160. The cubic root of 6709330091 is about 1886.0783058050.

The spelling of 6709330091 in words is "six billion, seven hundred nine million, three hundred thirty thousand, ninety-one".