63623943936 has 288 divisors, whose sum is σ = 224378219520. Its totient is φ = 17387606016.

The previous prime is 63623943931. The next prime is 63623943973. The reversal of 63623943936 is 63934932636.

It is a happy number.

63623943936 is a `hidden beast` number, since 6 + 3 + 623 + 9 + 4 + 3 + 9 + 3 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63623943931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1084246 + ... + 1141418.

It is an arithmetic number, because the mean of its divisors is an integer number (779091040).

Almost surely, 2^63623943936 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 63623943936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112189109760).

63623943936 is an abundant number, since it is smaller than the sum of its proper divisors (160754275584).

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

63623943936 is a wasteful number, since it uses less digits than its factorization.

63623943936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57228 (or 57208 counting only the distinct ones).

The product of its digits is 11337408, while the sum is 54.

The spelling of 63623943936 in words is "sixty-three billion, six hundred twenty-three million, nine hundred forty-three thousand, nine hundred thirty-six".