632489957664 has 24 divisors (see below), whose sum is σ = 1660286139120. Its totient is φ = 210829985856.

The previous prime is 632489957663. The next prime is 632489957681. The reversal of 632489957664 is 466759984236.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (632489957663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3294218434 + ... + 3294218625.

It is an arithmetic number, because the mean of its divisors is an integer number (69178589130).

Almost surely, 2^632489957664 is an apocalyptic number.

It is an amenable number.

632489957664 is an abundant number, since it is smaller than the sum of its proper divisors (1027796181456).

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

632489957664 is a wasteful number, since it uses less digits than its factorization.

632489957664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6588437072 (or 6588437064 counting only the distinct ones).

The product of its digits is 470292480, while the sum is 69.

The spelling of 632489957664 in words is "six hundred thirty-two billion, four hundred eighty-nine million, nine hundred fifty-seven thousand, six hundred sixty-four".