12813116705 has 4 divisors (see below), whose sum is σ = 15375740052. Its totient is φ = 10250493360.

The previous prime is 12813116677. The next prime is 12813116711. The reversal of 12813116705 is 50761131821.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6818795776 + 5994320929 = 82576^2 + 77423^2 .

It is not a de Polignac number, because 12813116705 - 2²⁴ = 12796339489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1281311666 + ... + 1281311675.

It is an arithmetic number, because the mean of its divisors is an integer number (3843935013).

Almost surely, 2^12813116705 is an apocalyptic number.

It is an amenable number.

12813116705 is a deficient number, since it is larger than the sum of its proper divisors (2562623347).

12813116705 is an equidigital number, since it uses as much as digits as its factorization.

12813116705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2562623346.

The product of its (nonzero) digits is 10080, while the sum is 35.

The spelling of 12813116705 in words is "twelve billion, eight hundred thirteen million, one hundred sixteen thousand, seven hundred five".