297486680216477 has 2 divisors, whose sum is σ = 297486680216478. Its totient is φ = 297486680216476.

The previous prime is 297486680216437. The next prime is 297486680216483. The reversal of 297486680216477 is 774612086684792.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217186065970756 + 80300614245721 = 14737234^2 + 8961061^2 .

It is a cyclic number.

It is not a de Polignac number, because 297486680216477 - 2⁶ = 297486680216413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 297486680216398 and 297486680216407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (297486680216437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 148743340108238 + 148743340108239.

It is an arithmetic number, because the mean of its divisors is an integer number (148743340108239).

Almost surely, 2^{297486680216477} is an apocalyptic number.

It is an amenable number.

297486680216477 is a deficient number, since it is larger than the sum of its proper divisors (1).

297486680216477 is an equidigital number, since it uses as much as digits as its factorization.

297486680216477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2731180032, while the sum is 77.

The spelling of 297486680216477 in words is "two hundred ninety-seven trillion, four hundred eighty-six billion, six hundred eighty million, two hundred sixteen thousand, four hundred seventy-seven".