635131366402442 has 96 divisors (see below), whose sum is σ = 1221055834360320. Its totient is φ = 245522712314880.

The previous prime is 635131366402399. The next prime is 635131366402597. The reversal of 635131366402442 is 244204663131536.

It is an unprimeable number.

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 in 47 ways as a sum of consecutive naturals, for example, 22765934 + ... + 42291257.

It is an arithmetic number, because the mean of its divisors is an integer number (12719331607920).

Almost surely, 2^{635131366402442} is an apocalyptic number.

635131366402442 is a deficient number, since it is larger than the sum of its proper divisors (585924467957878).

635131366402442 is a wasteful number, since it uses less digits than its factorization.

635131366402442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65057396 (or 65057389 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 50.

The spelling of 635131366402442 in words is "six hundred thirty-five trillion, one hundred thirty-one billion, three hundred sixty-six million, four hundred two thousand, four hundred forty-two".