274643780353 has 2 divisors, whose sum is σ = 274643780354. Its totient is φ = 274643780352.

The previous prime is 274643780339. The next prime is 274643780503. The reversal of 274643780353 is 353087346472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214310665969 + 60333114384 = 462937^2 + 245628^2 .

It is a cyclic number.

It is not a de Polignac number, because 274643780353 - 2⁹ = 274643779841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 274643780353.

It is not a weakly prime, because it can be changed into another prime (274643720353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137321890176 + 137321890177.

It is an arithmetic number, because the mean of its divisors is an integer number (137321890177).

Almost surely, 2^274643780353 is an apocalyptic number.

It is an amenable number.

274643780353 is a deficient number, since it is larger than the sum of its proper divisors (1).

274643780353 is an equidigital number, since it uses as much as digits as its factorization.

274643780353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10160640, while the sum is 52.

The spelling of 274643780353 in words is "two hundred seventy-four billion, six hundred forty-three million, seven hundred eighty thousand, three hundred fifty-three".