27313235449 has 2 divisors, whose sum is σ = 27313235450. Its totient is φ = 27313235448.

The previous prime is 27313235399. The next prime is 27313235473. The reversal of 27313235449 is 94453231372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24221319424 + 3091916025 = 155632^2 + 55605^2 .

It is a cyclic number.

It is not a de Polignac number, because 27313235449 - 2²⁵ = 27279681017 is a prime.

It is not a weakly prime, because it can be changed into another prime (27313235749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13656617724 + 13656617725.

It is an arithmetic number, because the mean of its divisors is an integer number (13656617725).

Almost surely, 2^27313235449 is an apocalyptic number.

It is an amenable number.

27313235449 is a deficient number, since it is larger than the sum of its proper divisors (1).

27313235449 is an equidigital number, since it uses as much as digits as its factorization.

27313235449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 43.

The spelling of 27313235449 in words is "twenty-seven billion, three hundred thirteen million, two hundred thirty-five thousand, four hundred forty-nine".