274431027649 has 2 divisors, whose sum is σ = 274431027650. Its totient is φ = 274431027648.

The previous prime is 274431027641. The next prime is 274431027713. The reversal of 274431027649 is 946720134472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209580840000 + 64850187649 = 457800^2 + 254657^2 .

It is a cyclic number.

It is not a de Polignac number, because 274431027649 - 2³ = 274431027641 is a prime.

It is not a weakly prime, because it can be changed into another prime (274431027641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137215513824 + 137215513825.

It is an arithmetic number, because the mean of its divisors is an integer number (137215513825).

Almost surely, 2^274431027649 is an apocalyptic number.

It is an amenable number.

274431027649 is a deficient number, since it is larger than the sum of its proper divisors (1).

274431027649 is an equidigital number, since it uses as much as digits as its factorization.

274431027649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2032128, while the sum is 49.

The spelling of 274431027649 in words is "two hundred seventy-four billion, four hundred thirty-one million, twenty-seven thousand, six hundred forty-nine".