13613882977 has 2 divisors, whose sum is σ = 13613882978. Its totient is φ = 13613882976.

The previous prime is 13613882959. The next prime is 13613882993. The reversal of 13613882977 is 77928831631.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9863667856 + 3750215121 = 99316^2 + 61239^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13613882977 is a prime.

It is a super-2 number, since 2×13613882977² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13613882377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6806941488 + 6806941489.

It is an arithmetic number, because the mean of its divisors is an integer number (6806941489).

Almost surely, 2^13613882977 is an apocalyptic number.

It is an amenable number.

13613882977 is a deficient number, since it is larger than the sum of its proper divisors (1).

13613882977 is an equidigital number, since it uses as much as digits as its factorization.

13613882977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 55.

The spelling of 13613882977 in words is "thirteen billion, six hundred thirteen million, eight hundred eighty-two thousand, nine hundred seventy-seven".