63627803820 has 576 divisors, whose sum is σ = 239167918080. Its totient is φ = 13369245696.

The previous prime is 63627803809. The next prime is 63627803849. The reversal of 63627803820 is 2830872636.

63627803820 is a `hidden beast` number, since 636 + 2 + 7 + 8 + 0 + 3 + 8 + 2 + 0 = 666.

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

It is an unprimeable number.

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 191 ways as a sum of consecutive naturals, for example, 217159594 + ... + 217159886.

It is an arithmetic number, because the mean of its divisors is an integer number (415222080).

Almost surely, 2^63627803820 is an apocalyptic number.

63627803820 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63627803820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119583959040).

63627803820 is an abundant number, since it is smaller than the sum of its proper divisors (175540114260).

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

63627803820 is a wasteful number, since it uses less digits than its factorization.

63627803820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 63627803820 in words is "sixty-three billion, six hundred twenty-seven million, eight hundred three thousand, eight hundred twenty".