63127572720 has 160 divisors (see below), whose sum is σ = 197205503040. Its totient is φ = 16704552960.

The previous prime is 63127572719. The next prime is 63127572749. The reversal of 63127572720 is 2727572136.

It is a happy number.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 24194776 + ... + 24197384.

It is an arithmetic number, because the mean of its divisors is an integer number (1232534394).

Almost surely, 2^63127572720 is an apocalyptic number.

63127572720 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 63127572720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98602751520).

63127572720 is an abundant number, since it is smaller than the sum of its proper divisors (134077930320).

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

63127572720 is a wasteful number, since it uses less digits than its factorization.

63127572720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3363 (or 3357 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 42.

The spelling of 63127572720 in words is "sixty-three billion, one hundred twenty-seven million, five hundred seventy-two thousand, seven hundred twenty".