63347398920 has 192 divisors, whose sum is σ = 228651033600. Its totient is φ = 15593160960.

The previous prime is 63347398909. The next prime is 63347398921. The reversal of 63347398920 is 2989374336.

63347398920 is a `hidden beast` number, since 63 + 3 + 473 + 98 + 9 + 20 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (63347398921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8985 + ... + 356055.

It is an arithmetic number, because the mean of its divisors is an integer number (1190890800).

Almost surely, 2^63347398920 is an apocalyptic number.

63347398920 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 63347398920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114325516800).

63347398920 is an abundant number, since it is smaller than the sum of its proper divisors (165303634680).

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

63347398920 is a wasteful number, since it uses less digits than its factorization.

63347398920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347117 (or 347094 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 54.

The spelling of 63347398920 in words is "sixty-three billion, three hundred forty-seven million, three hundred ninety-eight thousand, nine hundred twenty".