12761664613 has 8 divisors (see below), whose sum is σ = 13036712832. Its totient is φ = 12486763296.

The previous prime is 12761664611. The next prime is 12761664667. The reversal of 12761664613 is 31646616721.

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 12761664613 - 2¹ = 12761664611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12761664613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12761664611) 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, 148881 + ... + 218377.

It is an arithmetic number, because the mean of its divisors is an integer number (1629589104).

Almost surely, 2^12761664613 is an apocalyptic number.

It is an amenable number.

12761664613 is a deficient number, since it is larger than the sum of its proper divisors (275048219).

12761664613 is an equidigital number, since it uses as much as digits as its factorization.

12761664613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73451.

The product of its digits is 217728, while the sum is 43.

The spelling of 12761664613 in words is "twelve billion, seven hundred sixty-one million, six hundred sixty-four thousand, six hundred thirteen".