63405475232 has 48 divisors (see below), whose sum is σ = 137303195904. Its totient is φ = 28820651200.

The previous prime is 63405475181. The next prime is 63405475247. The reversal of 63405475232 is 23257450436.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 63405475232.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701744 + ... + 786927.

It is an arithmetic number, because the mean of its divisors is an integer number (2860483248).

Almost surely, 2^63405475232 is an apocalyptic number.

It is an amenable number.

63405475232 is an abundant number, since it is smaller than the sum of its proper divisors (73897720672).

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

63405475232 is a wasteful number, since it uses less digits than its factorization.

63405475232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488714 (or 1488684 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 41.

The spelling of 63405475232 in words is "sixty-three billion, four hundred five million, four hundred seventy-five thousand, two hundred thirty-two".