64528844258 has 6 divisors (see below), whose sum is σ = 96793805259. Its totient is φ = 32264242506.

The previous prime is 64528844201. The next prime is 64528844267. The reversal of 64528844258 is 85244882546.

It can be written as a sum of positive squares in only one way, i.e., 32264422129 + 32264422129 = 179623^2 + 179623^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=179623.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 269435 + ... + 449057.

Almost surely, 2^64528844258 is an apocalyptic number.

64528844258 is a deficient number, since it is larger than the sum of its proper divisors (32264961001).

64528844258 is an frugal number, since it uses more digits than its factorization.

64528844258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359248 (or 179625 counting only the distinct ones).

The product of its digits is 19660800, while the sum is 56.

The spelling of 64528844258 in words is "sixty-four billion, five hundred twenty-eight million, eight hundred forty-four thousand, two hundred fifty-eight".