635464256797 has 2 divisors, whose sum is σ = 635464256798. Its totient is φ = 635464256796.

The previous prime is 635464256741. The next prime is 635464256807. The reversal of 635464256797 is 797652464536.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 349817834116 + 285646422681 = 591454^2 + 534459^2 .

It is a cyclic number.

It is not a de Polignac number, because 635464256797 - 2³⁹ = 85708442909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (635464256737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317732128398 + 317732128399.

It is an arithmetic number, because the mean of its divisors is an integer number (317732128399).

Almost surely, 2^635464256797 is an apocalyptic number.

It is an amenable number.

635464256797 is a deficient number, since it is larger than the sum of its proper divisors (1).

635464256797 is an equidigital number, since it uses as much as digits as its factorization.

635464256797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 228614400, while the sum is 64.

The spelling of 635464256797 in words is "six hundred thirty-five billion, four hundred sixty-four million, two hundred fifty-six thousand, seven hundred ninety-seven".