85806502322 has 18 divisors (see below), whose sum is σ = 131799975453. Its totient is φ = 41896801632.

The previous prime is 85806502307. The next prime is 85806502387. The reversal of 85806502322 is 22320560858.

It can be written as a sum of positive squares in 2 ways, for example, as 67610920441 + 18195581881 = 260021^2 + 134891^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=207131.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85806502322.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 17810858 + ... + 17815674.

Almost surely, 2^85806502322 is an apocalyptic number.

85806502322 is a deficient number, since it is larger than the sum of its proper divisors (45993473131).

85806502322 is an frugal number, since it uses more digits than its factorization.

85806502322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9722 (or 4862 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 41.

The spelling of 85806502322 in words is "eighty-five billion, eight hundred six million, five hundred two thousand, three hundred twenty-two".