635348261076647 has 2 divisors, whose sum is σ = 635348261076648. Its totient is φ = 635348261076646.

The previous prime is 635348261076541. The next prime is 635348261076671. The reversal of 635348261076647 is 746670162843536.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 635348261076647 - 2²² = 635348256882343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (635348261076847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317674130538323 + 317674130538324.

It is an arithmetic number, because the mean of its divisors is an integer number (317674130538324).

Almost surely, 2^{635348261076647} is an apocalyptic number.

635348261076647 is a deficient number, since it is larger than the sum of its proper divisors (1).

635348261076647 is an equidigital number, since it uses as much as digits as its factorization.

635348261076647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 731566080, while the sum is 68.

The spelling of 635348261076647 in words is "six hundred thirty-five trillion, three hundred forty-eight billion, two hundred sixty-one million, seventy-six thousand, six hundred forty-seven".