63443732352 has 1536 divisors, whose sum is σ = 260206732800. Its totient is φ = 13377208320.

The previous prime is 63443732351. The next prime is 63443732357. The reversal of 63443732352 is 25323734436.

It is a super-2 number, since 2×63443732352² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63443732351) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 869092188 + ... + 869092260.

It is an arithmetic number, because the mean of its divisors is an integer number (169405425).

Almost surely, 2^63443732352 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 63443732352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130103366400).

63443732352 is an abundant number, since it is smaller than the sum of its proper divisors (196763000448).

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

63443732352 is a wasteful number, since it uses less digits than its factorization.

63443732352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 145 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 42.

The spelling of 63443732352 in words is "sixty-three billion, four hundred forty-three million, seven hundred thirty-two thousand, three hundred fifty-two".