635668375607 has 2 divisors, whose sum is σ = 635668375608. Its totient is φ = 635668375606.

The previous prime is 635668375577. The next prime is 635668375621. The reversal of 635668375607 is 706573866536.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 635668375607 - 2¹⁴ = 635668359223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 635668375607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (635661375607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317834187803 + 317834187804.

It is an arithmetic number, because the mean of its divisors is an integer number (317834187804).

Almost surely, 2^635668375607 is an apocalyptic number.

635668375607 is a deficient number, since it is larger than the sum of its proper divisors (1).

635668375607 is an equidigital number, since it uses as much as digits as its factorization.

635668375607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 114307200, while the sum is 62.

The spelling of 635668375607 in words is "six hundred thirty-five billion, six hundred sixty-eight million, three hundred seventy-five thousand, six hundred seven".