63923542272 has 108 divisors (see below), whose sum is σ = 186378798060. Its totient is φ = 21068365824.

The previous prime is 63923542253. The next prime is 63923542283. The reversal of 63923542272 is 27224532936.

63923542272 is a `hidden beast` number, since 6 + 39 + 2 + 3 + 542 + 2 + 72 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 40507197696 + 23416344576 = 201264^2 + 153024^2 .

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, 49188 + ... + 360924.

Almost surely, 2^63923542272 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 63923542272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93189399030).

63923542272 is an abundant number, since it is smaller than the sum of its proper divisors (122455255788).

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

63923542272 is a wasteful number, since it uses less digits than its factorization.

63923542272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311848 (or 311831 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 45.

The spelling of 63923542272 in words is "sixty-three billion, nine hundred twenty-three million, five hundred forty-two thousand, two hundred seventy-two".