10591308691 has 4 divisors (see below), whose sum is σ = 10605412384. Its totient is φ = 10577205000.

The previous prime is 10591308683. The next prime is 10591308727. The reversal of 10591308691 is 19680319501.

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 10591308691 - 2³ = 10591308683 is a prime.

It is a super-2 number, since 2×10591308691² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10591302691) 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, 7050720 + ... + 7052221.

It is an arithmetic number, because the mean of its divisors is an integer number (2651353096).

Almost surely, 2^10591308691 is an apocalyptic number.

10591308691 is a deficient number, since it is larger than the sum of its proper divisors (14103693).

10591308691 is an equidigital number, since it uses as much as digits as its factorization.

10591308691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14103692.

The product of its (nonzero) digits is 58320, while the sum is 43.

The spelling of 10591308691 in words is "ten billion, five hundred ninety-one million, three hundred eight thousand, six hundred ninety-one".