64242096257 has 2 divisors, whose sum is σ = 64242096258. Its totient is φ = 64242096256.

The previous prime is 64242096209. The next prime is 64242096287. The reversal of 64242096257 is 75269024246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63966503056 + 275593201 = 252916^2 + 16601^2 .

It is a cyclic number.

It is not a de Polignac number, because 64242096257 - 2⁸ = 64242096001 is a prime.

It is not a weakly prime, because it can be changed into another prime (64242096287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32121048128 + 32121048129.

It is an arithmetic number, because the mean of its divisors is an integer number (32121048129).

Almost surely, 2^64242096257 is an apocalyptic number.

It is an amenable number.

64242096257 is a deficient number, since it is larger than the sum of its proper divisors (1).

64242096257 is an equidigital number, since it uses as much as digits as its factorization.

64242096257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 64242096257 in words is "sixty-four billion, two hundred forty-two million, ninety-six thousand, two hundred fifty-seven".