63533875585631 has 48 divisors (see below), whose sum is σ = 73102400726400. Its totient is φ = 54743123448000.

The previous prime is 63533875585627. The next prime is 63533875585643. The reversal of 63533875585631 is 13658557833536.

It is a happy number.

63533875585631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63533875585631 - 2² = 63533875585627 is a prime.

It is a super-2 number, since 2×63533875585631² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63533875585681) by changing a digit.

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, 167582996 + ... + 167961686.

It is an arithmetic number, because the mean of its divisors is an integer number (1522966681800).

Almost surely, 2^{63533875585631} is an apocalyptic number.

63533875585631 is a deficient number, since it is larger than the sum of its proper divisors (9568525140769).

63533875585631 is a wasteful number, since it uses less digits than its factorization.

63533875585631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379092 (or 379061 counting only the distinct ones).

The product of its digits is 816480000, while the sum is 68.

The spelling of 63533875585631 in words is "sixty-three trillion, five hundred thirty-three billion, eight hundred seventy-five million, five hundred eighty-five thousand, six hundred thirty-one".