633672063631 has 4 divisors (see below), whose sum is σ = 633738170232. Its totient is φ = 633605957032.

The previous prime is 633672063623. The next prime is 633672063701. The reversal of 633672063631 is 136360276336.

633672063631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 633672063631 - 2³ = 633672063623 is a prime.

It is a super-3 number, since 3×633672063631³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633672063611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33038920 + ... + 33058093.

It is an arithmetic number, because the mean of its divisors is an integer number (158434542558).

Almost surely, 2^633672063631 is an apocalyptic number.

633672063631 is a deficient number, since it is larger than the sum of its proper divisors (66106601).

633672063631 is an equidigital number, since it uses as much as digits as its factorization.

633672063631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66106600.

The product of its (nonzero) digits is 1469664, while the sum is 46.

The spelling of 633672063631 in words is "six hundred thirty-three billion, six hundred seventy-two million, sixty-three thousand, six hundred thirty-one".