298800368220649 has 27 divisors (see below), whose sum is σ = 303780600300861. Its totient is φ = 293901508456920.

The previous prime is 298800368220647. The next prime is 298800368220659. The reversal of 298800368220649 is 946022863008892.

The square root of 298800368220649 is 17285843.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 298800368220649 - 2¹ = 298800368220647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (298800368220647) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 287584569472 + ... + 287584570510.

Almost surely, 2^{298800368220649} is an apocalyptic number.

298800368220649 is the 17285843-rd square number.

298800368220649 is the 8642922-nd centered octagonal number.

It is an amenable number.

298800368220649 is a deficient number, since it is larger than the sum of its proper divisors (4980232080212).

298800368220649 is an frugal number, since it uses more digits than its factorization.

298800368220649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2594 (or 1297 counting only the distinct ones).

The product of its (nonzero) digits is 143327232, while the sum is 67.

The spelling of 298800368220649 in words is "two hundred ninety-eight trillion, eight hundred billion, three hundred sixty-eight million, two hundred twenty thousand, six hundred forty-nine".