64930828896 has 72 divisors (see below), whose sum is σ = 184932964944. Its totient is φ = 21610095360.

The previous prime is 64930828861. The next prime is 64930828901. The reversal of 64930828896 is 69882803946.

64930828896 is a `hidden beast` number, since 6 + 49 + 308 + 288 + 9 + 6 = 666.

64930828896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×64930828896² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12106 + ... + 360566.

It is an arithmetic number, because the mean of its divisors is an integer number (2568513402).

Almost surely, 2^64930828896 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 64930828896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92466482472).

64930828896 is an abundant number, since it is smaller than the sum of its proper divisors (120002136048).

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

64930828896 is a wasteful number, since it uses less digits than its factorization.

64930828896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349124 (or 349113 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 63.

The spelling of 64930828896 in words is "sixty-four billion, nine hundred thirty million, eight hundred twenty-eight thousand, eight hundred ninety-six".