64708104434688 has 2816 divisors, whose sum is σ = 241405527982080. Its totient is φ = 17065973514240.

The previous prime is 64708104434683. The next prime is 64708104434713. The reversal of 64708104434688 is 88643440180746.

64708104434688 is a `hidden beast` number, since 6 + 4 + 70 + 8 + 1 + 0 + 443 + 46 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (2816).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64708104434683) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 509512633281 + ... + 509512633407.

It is an arithmetic number, because the mean of its divisors is an integer number (85726394880).

Almost surely, 2^{64708104434688} 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 64708104434688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120702763991040).

64708104434688 is an abundant number, since it is smaller than the sum of its proper divisors (176697423547392).

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

64708104434688 is a wasteful number, since it uses less digits than its factorization.

64708104434688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 236 counting only the distinct ones).

The product of its (nonzero) digits is 99090432, while the sum is 63.

The spelling of 64708104434688 in words is "sixty-four trillion, seven hundred eight billion, one hundred four million, four hundred thirty-four thousand, six hundred eighty-eight".