633238125812 has 6 divisors (see below), whose sum is σ = 1108166720178. Its totient is φ = 316619062904.

The previous prime is 633238125781. The next prime is 633238125881. The reversal of 633238125812 is 218521832336.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 404834422756 + 228403703056 = 636266^2 + 477916^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79154765723 + ... + 79154765730.

It is an arithmetic number, because the mean of its divisors is an integer number (184694453363).

Almost surely, 2^633238125812 is an apocalyptic number.

It is an amenable number.

633238125812 is a deficient number, since it is larger than the sum of its proper divisors (474928594366).

633238125812 is a wasteful number, since it uses less digits than its factorization.

633238125812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158309531457 (or 158309531455 counting only the distinct ones).

The product of its digits is 414720, while the sum is 44.

The spelling of 633238125812 in words is "six hundred thirty-three billion, two hundred thirty-eight million, one hundred twenty-five thousand, eight hundred twelve".