13855180277 has 2 divisors, whose sum is σ = 13855180278. Its totient is φ = 13855180276.

The previous prime is 13855180271. The next prime is 13855180279. The reversal of 13855180277 is 77208155831.

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., 9800802001 + 4054378276 = 98999^2 + 63674^2 .

It is a cyclic number.

It is not a de Polignac number, because 13855180277 - 2²⁰ = 13854131701 is a prime.

Together with 13855180279, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13855180271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6927590138 + 6927590139.

It is an arithmetic number, because the mean of its divisors is an integer number (6927590139).

Almost surely, 2^13855180277 is an apocalyptic number.

It is an amenable number.

13855180277 is a deficient number, since it is larger than the sum of its proper divisors (1).

13855180277 is an equidigital number, since it uses as much as digits as its factorization.

13855180277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 470400, while the sum is 47.

The spelling of 13855180277 in words is "thirteen billion, eight hundred fifty-five million, one hundred eighty thousand, two hundred seventy-seven".