274366732561 has 2 divisors, whose sum is σ = 274366732562. Its totient is φ = 274366732560.

The previous prime is 274366732513. The next prime is 274366732613. The reversal of 274366732561 is 165237663472.

It is an a-pointer prime, because the next prime (274366732613) can be obtained adding 274366732561 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190292250625 + 84074481936 = 436225^2 + 289956^2 .

It is a cyclic number.

It is not a de Polignac number, because 274366732561 - 2⁹ = 274366732049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 274366732499 and 274366732508.

It is not a weakly prime, because it can be changed into another prime (274366712561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137183366280 + 137183366281.

It is an arithmetic number, because the mean of its divisors is an integer number (137183366281).

Almost surely, 2^274366732561 is an apocalyptic number.

It is an amenable number.

274366732561 is a deficient number, since it is larger than the sum of its proper divisors (1).

274366732561 is an equidigital number, since it uses as much as digits as its factorization.

274366732561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7620480, while the sum is 52.

The spelling of 274366732561 in words is "two hundred seventy-four billion, three hundred sixty-six million, seven hundred thirty-two thousand, five hundred sixty-one".