82694393825 has 12 divisors (see below), whose sum is σ = 102687348348. Its totient is φ = 66061128000.

The previous prime is 82694393783. The next prime is 82694393843. The reversal of 82694393825 is 52839349628.

It can be written as a sum of positive squares in 6 ways, for example, as 249608401 + 82444785424 = 15799^2 + 287132^2 .

It is not a de Polignac number, because 82694393825 - 2¹⁶ = 82694328289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2341802 + ... + 2376851.

It is an arithmetic number, because the mean of its divisors is an integer number (8557279029).

Almost surely, 2^82694393825 is an apocalyptic number.

It is an amenable number.

82694393825 is a deficient number, since it is larger than the sum of its proper divisors (19992954523).

82694393825 is a wasteful number, since it uses less digits than its factorization.

82694393825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4719364 (or 4719359 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 59.

The spelling of 82694393825 in words is "eighty-two billion, six hundred ninety-four million, three hundred ninety-three thousand, eight hundred twenty-five".