633478831320 has 64 divisors (see below), whose sum is σ = 1900629450720. Its totient is φ = 168910536704.

The previous prime is 633478831301. The next prime is 633478831327. The reversal of 633478831320 is 23138874336.

It is a self number, because there is not a number n which added to its sum of digits gives 633478831320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633478831327) 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 15 ways as a sum of consecutive naturals, for example, 941464 + ... + 1467416.

Almost surely, 2^633478831320 is an apocalyptic number.

633478831320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

633478831320 is an abundant number, since it is smaller than the sum of its proper divisors (1267150619400).

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

633478831320 is a wasteful number, since it uses less digits than its factorization.

633478831320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536004 (or 536000 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 48.

The spelling of 633478831320 in words is "six hundred thirty-three billion, four hundred seventy-eight million, eight hundred thirty-one thousand, three hundred twenty".