64384788052 has 12 divisors (see below), whose sum is σ = 121340562196. Its totient is φ = 29716056000.

The previous prime is 64384788011. The next prime is 64384788067. The reversal of 64384788052 is 25088748346.

It can be written as a sum of positive squares in 2 ways, for example, as 8028876816 + 56355911236 = 89604^2 + 237394^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64384787984 and 64384788002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 619084449 + ... + 619084552.

Almost surely, 2^64384788052 is an apocalyptic number.

It is an amenable number.

64384788052 is a deficient number, since it is larger than the sum of its proper divisors (56955774144).

64384788052 is a wasteful number, since it uses less digits than its factorization.

64384788052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238169018 (or 1238169016 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 55.

The spelling of 64384788052 in words is "sixty-four billion, three hundred eighty-four million, seven hundred eighty-eight thousand, fifty-two".