63382173640 has 64 divisors (see below), whose sum is σ = 152832303360. Its totient is φ = 23595137280.

The previous prime is 63382173623. The next prime is 63382173661. The reversal of 63382173640 is 4637128336.

It is a super-2 number, since 2×63382173640² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 896956 + ... + 965035.

It is an arithmetic number, because the mean of its divisors is an integer number (2388004740).

Almost surely, 2^63382173640 is an apocalyptic number.

It is an amenable number.

63382173640 is an abundant number, since it is smaller than the sum of its proper divisors (89450129720).

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

63382173640 is a wasteful number, since it uses less digits than its factorization.

63382173640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862062 (or 1862058 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 63382173640 in words is "sixty-three billion, three hundred eighty-two million, one hundred seventy-three thousand, six hundred forty".