13677209677 has 2 divisors, whose sum is σ = 13677209678. Its totient is φ = 13677209676.

The previous prime is 13677209561. The next prime is 13677209683. The reversal of 13677209677 is 77690277631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7817919561 + 5859290116 = 88419^2 + 76546^2 .

It is an emirp because it is prime and its reverse (77690277631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13677209677 - 2¹¹ = 13677207629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13677239677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6838604838 + 6838604839.

It is an arithmetic number, because the mean of its divisors is an integer number (6838604839).

Almost surely, 2^13677209677 is an apocalyptic number.

It is an amenable number.

13677209677 is a deficient number, since it is larger than the sum of its proper divisors (1).

13677209677 is an equidigital number, since it uses as much as digits as its factorization.

13677209677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4667544, while the sum is 55.

The spelling of 13677209677 in words is "thirteen billion, six hundred seventy-seven million, two hundred nine thousand, six hundred seventy-seven".