12716377777777 has 6 divisors (see below), whose sum is σ = 13139815956594. Its totient is φ = 12306172042080.

The previous prime is 12716377777693. The next prime is 12716377777781. The reversal of 12716377777777 is 77777777361721.

It can be written as a sum of positive squares in only one way, i.e., 7160381940321 + 5555995837456 = 2675889^2 + 2357116^2 .

It is not a de Polignac number, because 12716377777777 - 2²³ = 12716369389169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12716377777577) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6616220568 + ... + 6616222489.

It is an arithmetic number, because the mean of its divisors is an integer number (2189969326099).

Almost surely, 2^{12716377777777} is an apocalyptic number.

It is an amenable number.

12716377777777 is a deficient number, since it is larger than the sum of its proper divisors (423438178817).

12716377777777 is an equidigital number, since it uses as much as digits as its factorization.

12716377777777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13232443119 (or 13232443088 counting only the distinct ones).

The product of its digits is 1452729852, while the sum is 76.

The spelling of 12716377777777 in words is "twelve trillion, seven hundred sixteen billion, three hundred seventy-seven million, seven hundred seventy-seven thousand, seven hundred seventy-seven".