63320384457 has 72 divisors (see below), whose sum is σ = 106674617088. Its totient is φ = 35855971200.

The previous prime is 63320384443. The next prime is 63320384467. The reversal of 63320384457 is 75448302336.

63320384457 is a `hidden beast` number, since 633 + 2 + 0 + 3 + 8 + 4 + 4 + 5 + 7 = 666.

It is not a de Polignac number, because 63320384457 - 2⁸ = 63320384201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63320384437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2568763 + ... + 2593295.

It is an arithmetic number, because the mean of its divisors is an integer number (1481591904).

Almost surely, 2^63320384457 is an apocalyptic number.

It is an amenable number.

63320384457 is a deficient number, since it is larger than the sum of its proper divisors (43354232631).

63320384457 is a wasteful number, since it uses less digits than its factorization.

63320384457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24639 (or 24607 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 45.

The spelling of 63320384457 in words is "sixty-three billion, three hundred twenty million, three hundred eighty-four thousand, four hundred fifty-seven".