64930385522 has 6 divisors (see below), whose sum is σ = 97396118829. Its totient is φ = 32465012580.

The previous prime is 64930385419. The next prime is 64930385537. The reversal of 64930385522 is 22558303946.

It can be written as a sum of positive squares in 2 ways, for example, as 60079402321 + 4850983201 = 245111^2 + 69649^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=180181.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 270272 + ... + 450452.

Almost surely, 2^64930385522 is an apocalyptic number.

64930385522 is a deficient number, since it is larger than the sum of its proper divisors (32465733307).

64930385522 is an frugal number, since it uses more digits than its factorization.

64930385522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360364 (or 180183 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 64930385522 in words is "sixty-four billion, nine hundred thirty million, three hundred eighty-five thousand, five hundred twenty-two".