63183523680 has 72 divisors (see below), whose sum is σ = 215613779472. Its totient is φ = 16848939264.

The previous prime is 63183523661. The next prime is 63183523703. The reversal of 63183523680 is 8632538136.

63183523680 is a `hidden beast` number, since 63 + 1 + 8 + 3 + 523 + 68 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×63183523680² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21937284 + ... + 21940163.

It is an arithmetic number, because the mean of its divisors is an integer number (2994635826).

Almost surely, 2^63183523680 is an apocalyptic number.

63183523680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63183523680 is an abundant number, since it is smaller than the sum of its proper divisors (152430255792).

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

63183523680 is a wasteful number, since it uses less digits than its factorization.

63183523680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43877468 (or 43877457 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 63183523680 in words is "sixty-three billion, one hundred eighty-three million, five hundred twenty-three thousand, six hundred eighty".