82578302757825 has 48 divisors (see below), whose sum is σ = 156034757053056. Its totient is φ = 37749818073600.

The previous prime is 82578302757793. The next prime is 82578302757889. The reversal of 82578302757825 is 52875720387528.

It is not a de Polignac number, because 82578302757825 - 2⁵ = 82578302757793 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 82578302757825.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 88625365 + ... + 89552285.

It is an arithmetic number, because the mean of its divisors is an integer number (3250724105272).

Almost surely, 2^{82578302757825} is an apocalyptic number.

It is an amenable number.

82578302757825 is a deficient number, since it is larger than the sum of its proper divisors (73456454295231).

82578302757825 is a wasteful number, since it uses less digits than its factorization.

82578302757825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096634 (or 1096629 counting only the distinct ones).

The product of its (nonzero) digits is 526848000, while the sum is 69.

The spelling of 82578302757825 in words is "eighty-two trillion, five hundred seventy-eight billion, three hundred two million, seven hundred fifty-seven thousand, eight hundred twenty-five".