13777273441 has 2 divisors, whose sum is σ = 13777273442. Its totient is φ = 13777273440.

The previous prime is 13777273427. The next prime is 13777273453. The reversal of 13777273441 is 14437277731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13151273041 + 626000400 = 114679^2 + 25020^2 .

It is a cyclic number.

It is not a de Polignac number, because 13777273441 - 2⁵ = 13777273409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13777273391 and 13777273400.

It is not a weakly prime, because it can be changed into another prime (13777273481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6888636720 + 6888636721.

It is an arithmetic number, because the mean of its divisors is an integer number (6888636721).

Almost surely, 2^13777273441 is an apocalyptic number.

It is an amenable number.

13777273441 is a deficient number, since it is larger than the sum of its proper divisors (1).

13777273441 is an equidigital number, since it uses as much as digits as its factorization.

13777273441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 691488, while the sum is 46.

The spelling of 13777273441 in words is "thirteen billion, seven hundred seventy-seven million, two hundred seventy-three thousand, four hundred forty-one".