63327313920 has 448 divisors, whose sum is σ = 225912395520. Its totient is φ = 15039725568.

The previous prime is 63327313883. The next prime is 63327313957. The reversal of 63327313920 is 2931372336.

It is an interprime number because it is at equal distance from previous prime (63327313883) and next prime (63327313957).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46325077 + ... + 46326443.

It is an arithmetic number, because the mean of its divisors is an integer number (504268740).

Almost surely, 2^63327313920 is an apocalyptic number.

63327313920 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 63327313920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112956197760).

63327313920 is an abundant number, since it is smaller than the sum of its proper divisors (162585081600).

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

63327313920 is a wasteful number, since it uses less digits than its factorization.

63327313920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443 (or 1419 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 39.

The spelling of 63327313920 in words is "sixty-three billion, three hundred twenty-seven million, three hundred thirteen thousand, nine hundred twenty".