854240720297 has 2 divisors, whose sum is σ = 854240720298. Its totient is φ = 854240720296.

The previous prime is 854240720239. The next prime is 854240720317. The reversal of 854240720297 is 792027042458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 611123681536 + 243117038761 = 781744^2 + 493069^2 .

It is a cyclic number.

It is not a de Polignac number, because 854240720297 - 2⁸ = 854240720041 is a prime.

It is not a weakly prime, because it can be changed into another prime (854240720237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427120360148 + 427120360149.

It is an arithmetic number, because the mean of its divisors is an integer number (427120360149).

Almost surely, 2^854240720297 is an apocalyptic number.

It is an amenable number.

854240720297 is a deficient number, since it is larger than the sum of its proper divisors (1).

854240720297 is an equidigital number, since it uses as much as digits as its factorization.

854240720297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 854240720297 in words is "eight hundred fifty-four billion, two hundred forty million, seven hundred twenty thousand, two hundred ninety-seven".