633228520872 has 64 divisors (see below), whose sum is σ = 1668024187200. Its totient is φ = 199770900480.

The previous prime is 633228520867. The next prime is 633228520877. The reversal of 633228520872 is 278025822336.

It is an interprime number because it is at equal distance from previous prime (633228520867) and next prime (633228520877).

It is not an unprimeable number, because it can be changed into a prime (633228520877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214473 + ... + 1145624.

It is an arithmetic number, because the mean of its divisors is an integer number (26062877925).

Almost surely, 2^633228520872 is an apocalyptic number.

It is an amenable number.

633228520872 is an abundant number, since it is smaller than the sum of its proper divisors (1034795666328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

633228520872 is a wasteful number, since it uses less digits than its factorization.

633228520872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361146 (or 1361142 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 633228520872 in words is "six hundred thirty-three billion, two hundred twenty-eight million, five hundred twenty thousand, eight hundred seventy-two".