274446644489 has 2 divisors, whose sum is σ = 274446644490. Its totient is φ = 274446644488.

The previous prime is 274446644467. The next prime is 274446644491. The reversal of 274446644489 is 984446644472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272788933264 + 1657711225 = 522292^2 + 40715^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274446644489 is a prime.

It is a super-2 number, since 2×274446644489² (a number of 24 digits) contains 22 as substring.

Together with 274446644491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (274446649489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137223322244 + 137223322245.

It is an arithmetic number, because the mean of its divisors is an integer number (137223322245).

Almost surely, 2^274446644489 is an apocalyptic number.

It is an amenable number.

274446644489 is a deficient number, since it is larger than the sum of its proper divisors (1).

274446644489 is an equidigital number, since it uses as much as digits as its factorization.

274446644489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 148635648, while the sum is 62.

The spelling of 274446644489 in words is "two hundred seventy-four billion, four hundred forty-six million, six hundred forty-four thousand, four hundred eighty-nine".