63458563536 has 140 divisors (see below), whose sum is σ = 185284577412. Its totient is φ = 21044717568.

The previous prime is 63458563501. The next prime is 63458563537. The reversal of 63458563536 is 63536585436.

63458563536 is a `hidden beast` number, since 6 + 3 + 4 + 58 + 56 + 3 + 536 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 28022760000 + 35435803536 = 167400^2 + 188244^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63458563537) 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 27 ways as a sum of consecutive naturals, for example, 2284000 + ... + 2311616.

Almost surely, 2^63458563536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63458563536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92642288706).

63458563536 is an abundant number, since it is smaller than the sum of its proper divisors (121826013876).

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

63458563536 is a wasteful number, since it uses less digits than its factorization.

63458563536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27840 (or 27819 counting only the distinct ones).

The product of its digits is 23328000, while the sum is 54.

The spelling of 63458563536 in words is "sixty-three billion, four hundred fifty-eight million, five hundred sixty-three thousand, five hundred thirty-six".