82578445328 has 10 divisors (see below), whose sum is σ = 159995737854. Its totient is φ = 41289222656.

The previous prime is 82578445309. The next prime is 82578445331. The reversal of 82578445328 is 82354487528.

It can be written as a sum of positive squares in only one way, i.e., 57172635664 + 25405809664 = 239108^2 + 159392^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2580576401 + ... + 2580576432.

Almost surely, 2^82578445328 is an apocalyptic number.

It is an amenable number.

82578445328 is a deficient number, since it is larger than the sum of its proper divisors (77417292526).

82578445328 is a wasteful number, since it uses less digits than its factorization.

82578445328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5161152841 (or 5161152835 counting only the distinct ones).

The product of its digits is 17203200, while the sum is 56.

The spelling of 82578445328 in words is "eighty-two billion, five hundred seventy-eight million, four hundred forty-five thousand, three hundred twenty-eight".