63309385308 has 96 divisors (see below), whose sum is σ = 164659944960. Its totient is φ = 18797909760.

The previous prime is 63309385303. The next prime is 63309385367. The reversal of 63309385308 is 80358390336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63309385301) 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 31 ways as a sum of consecutive naturals, for example, 14415793 + ... + 14420183.

It is an arithmetic number, because the mean of its divisors is an integer number (1715207760).

Almost surely, 2^63309385308 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 63309385308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82329972480).

63309385308 is an abundant number, since it is smaller than the sum of its proper divisors (101350559652).

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

63309385308 is a wasteful number, since it uses less digits than its factorization.

63309385308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7627 (or 7625 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 48.

The spelling of 63309385308 in words is "sixty-three billion, three hundred nine million, three hundred eighty-five thousand, three hundred eight".