13677759857 has 2 divisors, whose sum is σ = 13677759858. Its totient is φ = 13677759856.

The previous prime is 13677759833. The next prime is 13677759863. The reversal of 13677759857 is 75895777631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6848555536 + 6829204321 = 82756^2 + 82639^2 .

It is a cyclic number.

It is not a de Polignac number, because 13677759857 - 2¹⁶ = 13677694321 is a prime.

It is a super-2 number, since 2×13677759857² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13677759793 and 13677759802.

It is not a weakly prime, because it can be changed into another prime (13677759257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6838879928 + 6838879929.

It is an arithmetic number, because the mean of its divisors is an integer number (6838879929).

Almost surely, 2^13677759857 is an apocalyptic number.

It is an amenable number.

13677759857 is a deficient number, since it is larger than the sum of its proper divisors (1).

13677759857 is an equidigital number, since it uses as much as digits as its factorization.

13677759857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77792400, while the sum is 65.

The spelling of 13677759857 in words is "thirteen billion, six hundred seventy-seven million, seven hundred fifty-nine thousand, eight hundred fifty-seven".