63326579946 has 96 divisors (see below), whose sum is σ = 154129718400. Its totient is φ = 16988258304.

The previous prime is 63326579933. The next prime is 63326579957. The reversal of 63326579946 is 64997562336.

It is a self number, because there is not a number n which added to its sum of digits gives 63326579946.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5249730 + ... + 5261778.

It is an arithmetic number, because the mean of its divisors is an integer number (1605517900).

Almost surely, 2^63326579946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63326579946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77064859200).

63326579946 is an abundant number, since it is smaller than the sum of its proper divisors (90803138454).

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

63326579946 is a wasteful number, since it uses less digits than its factorization.

63326579946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12528 (or 12511 counting only the distinct ones).

The product of its digits is 44089920, while the sum is 60.

The spelling of 63326579946 in words is "sixty-three billion, three hundred twenty-six million, five hundred seventy-nine thousand, nine hundred forty-six".