13047617677 has 2 divisors, whose sum is σ = 13047617678. Its totient is φ = 13047617676.

The previous prime is 13047617641. The next prime is 13047617707. The reversal of 13047617677 is 77671674031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8109182601 + 4938435076 = 90051^2 + 70274^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13047617677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13047617677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13047617377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6523808838 + 6523808839.

It is an arithmetic number, because the mean of its divisors is an integer number (6523808839).

Almost surely, 2^13047617677 is an apocalyptic number.

It is an amenable number.

13047617677 is a deficient number, since it is larger than the sum of its proper divisors (1).

13047617677 is an equidigital number, since it uses as much as digits as its factorization.

13047617677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1037232, while the sum is 49.

The spelling of 13047617677 in words is "thirteen billion, forty-seven million, six hundred seventeen thousand, six hundred seventy-seven".