297568813533489 has 15 divisors (see below), whose sum is σ = 444516607691497. Its totient is φ = 198379105521228.

The previous prime is 297568813533449. The next prime is 297568813533493. The reversal of 297568813533489 is 984335318865792.

The square root of 297568813533489 is 17250183.

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

297568813533489 is a `hidden beast` number, since 2 + 9 + 7 + 5 + 6 + 8 + 81 + 3 + 53 + 3 + 489 = 666.

It is not a de Polignac number, because 297568813533489 - 2⁷ = 297568813533361 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (297568813533449) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 154293304 + ... + 156209990.

Almost surely, 2^{297568813533489} is an apocalyptic number.

297568813533489 is the 17250183-rd square number.

297568813533489 is the 8625092-nd centered octagonal number.

It is an amenable number.

297568813533489 is a deficient number, since it is larger than the sum of its proper divisors (146947794158008).

297568813533489 is an frugal number, since it uses more digits than its factorization.

297568813533489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3833386 (or 1916690 counting only the distinct ones).

The product of its digits is 9405849600, while the sum is 81.

297568813533489 divided by its sum of digits (81) gives a square (3673689055969 = 1916687²).

The spelling of 297568813533489 in words is "two hundred ninety-seven trillion, five hundred sixty-eight billion, eight hundred thirteen million, five hundred thirty-three thousand, four hundred eighty-nine".