63244317420 has 144 divisors (see below), whose sum is σ = 194652232320. Its totient is φ = 16618867200.

The previous prime is 63244317403. The next prime is 63244317421. The reversal of 63244317420 is 2471344236.

63244317420 is a `hidden beast` number, since 63 + 244 + 317 + 42 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (63244317421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7688910 + ... + 7697130.

Almost surely, 2^63244317420 is an apocalyptic number.

63244317420 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 63244317420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97326116160).

63244317420 is an abundant number, since it is smaller than the sum of its proper divisors (131407914900).

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

63244317420 is a wasteful number, since it uses less digits than its factorization.

63244317420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8856 (or 8851 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 36.

The spelling of 63244317420 in words is "sixty-three billion, two hundred forty-four million, three hundred seventeen thousand, four hundred twenty".