63843347680 has 384 divisors, whose sum is σ = 187646699520. Its totient is φ = 20031406080.

The previous prime is 63843347627. The next prime is 63843347683. The reversal of 63843347680 is 8674334836.

It is a super-2 number, since 2×63843347680² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63843347683) 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 63 ways as a sum of consecutive naturals, for example, 112202436 + ... + 112203004.

It is an arithmetic number, because the mean of its divisors is an integer number (488663280).

Almost surely, 2^63843347680 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 63843347680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93823349760).

63843347680 is an abundant number, since it is smaller than the sum of its proper divisors (123803351840).

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

63843347680 is a wasteful number, since it uses less digits than its factorization.

63843347680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762 (or 754 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 52.

The spelling of 63843347680 in words is "sixty-three billion, eight hundred forty-three million, three hundred forty-seven thousand, six hundred eighty".