63316814428 has 48 divisors (see below), whose sum is σ = 129692041920. Its totient is φ = 26485714944.

The previous prime is 63316814419. The next prime is 63316814443. The reversal of 63316814428 is 82441861336.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175878 + ... + 396946.

It is an arithmetic number, because the mean of its divisors is an integer number (2701917540).

Almost surely, 2^63316814428 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 63316814428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64846020960).

63316814428 is an abundant number, since it is smaller than the sum of its proper divisors (66375227492).

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

63316814428 is a wasteful number, since it uses less digits than its factorization.

63316814428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221326 (or 221324 counting only the distinct ones).

The product of its digits is 663552, while the sum is 46.

The spelling of 63316814428 in words is "sixty-three billion, three hundred sixteen million, eight hundred fourteen thousand, four hundred twenty-eight".