635631622213063 has 32 divisors (see below), whose sum is σ = 755583137695232. Its totient is φ = 523386133200000.

The previous prime is 635631622212973. The next prime is 635631622213067. The reversal of 635631622213063 is 360312226136536.

It is a happy number.

It is not a de Polignac number, because 635631622213063 - 2⁴⁵ = 600447250124231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 635631622212998 and 635631622213016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (635631622213067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205041145 + ... + 208118077.

It is an arithmetic number, because the mean of its divisors is an integer number (23611973052976).

Almost surely, 2^{635631622213063} is an apocalyptic number.

635631622213063 is a deficient number, since it is larger than the sum of its proper divisors (119951515482169).

635631622213063 is a wasteful number, since it uses less digits than its factorization.

635631622213063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088295.

The product of its (nonzero) digits is 4199040, while the sum is 49.

Adding to 635631622213063 its reverse (360312226136536), we get a palindrome (995943848349599).

The spelling of 635631622213063 in words is "six hundred thirty-five trillion, six hundred thirty-one billion, six hundred twenty-two million, two hundred thirteen thousand, sixty-three".