297731416643 has 2 divisors, whose sum is σ = 297731416644. Its totient is φ = 297731416642.

The previous prime is 297731416613. The next prime is 297731416663. The reversal of 297731416643 is 346614137792.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 297731416643 - 2⁶ = 297731416579 is a prime.

It is not a weakly prime, because it can be changed into another prime (297731416613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 148865708321 + 148865708322.

It is an arithmetic number, because the mean of its divisors is an integer number (148865708322).

Almost surely, 2^297731416643 is an apocalyptic number.

297731416643 is a deficient number, since it is larger than the sum of its proper divisors (1).

297731416643 is an equidigital number, since it uses as much as digits as its factorization.

297731416643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 53.

The spelling of 297731416643 in words is "two hundred ninety-seven billion, seven hundred thirty-one million, four hundred sixteen thousand, six hundred forty-three".