64384185382896 has 80 divisors (see below), whose sum is σ = 173581221447936. Its totient is φ = 20525469769728.

The previous prime is 64384185382861. The next prime is 64384185382999. The reversal of 64384185382896 is 69828358148346.

It is a super-2 number, since 2×64384185382896² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4036656 + ... + 12044208.

Almost surely, 2^{64384185382896} is an apocalyptic number.

It is an amenable number.

64384185382896 is an abundant number, since it is smaller than the sum of its proper divisors (109197036065040).

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

64384185382896 is a wasteful number, since it uses less digits than its factorization.

64384185382896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8014870 (or 8014864 counting only the distinct ones).

The product of its digits is 1911029760, while the sum is 75.

The spelling of 64384185382896 in words is "sixty-four trillion, three hundred eighty-four billion, one hundred eighty-five million, three hundred eighty-two thousand, eight hundred ninety-six".