12806697311 has 8 divisors (see below), whose sum is σ = 13154817984. Its totient is φ = 12460279680.

The previous prime is 12806697269. The next prime is 12806697341. The reversal of 12806697311 is 11379660821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12806697311 - 2²⁶ = 12739588447 is a prime.

It is a super-2 number, since 2×12806697311² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12806697341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410510 + ... + 440603.

It is an arithmetic number, because the mean of its divisors is an integer number (1644352248).

Almost surely, 2^12806697311 is an apocalyptic number.

12806697311 is a deficient number, since it is larger than the sum of its proper divisors (348120673).

12806697311 is an equidigital number, since it uses as much as digits as its factorization.

12806697311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851521.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 12806697311 in words is "twelve billion, eight hundred six million, six hundred ninety-seven thousand, three hundred eleven".