64489183312 has 10 divisors (see below), whose sum is σ = 124947792698. Its totient is φ = 32244591648.

The previous prime is 64489183303. The next prime is 64489183357. The reversal of 64489183312 is 21338198446.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 64487555136 + 1628176 = 253944^2 + 1276^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2015286963 + ... + 2015286994.

Almost surely, 2^64489183312 is an apocalyptic number.

It is an amenable number.

64489183312 is a deficient number, since it is larger than the sum of its proper divisors (60458609386).

64489183312 is a wasteful number, since it uses less digits than its factorization.

64489183312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4030573965 (or 4030573959 counting only the distinct ones).

The product of its digits is 995328, while the sum is 49.

The spelling of 64489183312 in words is "sixty-four billion, four hundred eighty-nine million, one hundred eighty-three thousand, three hundred twelve".