85712248852 has 12 divisors (see below), whose sum is σ = 155168726580. Its totient is φ = 41378326976.

The previous prime is 85712248801. The next prime is 85712248871. The reversal of 85712248852 is 25884221758.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 44780484996 + 40931763856 = 211614^2 + 202316^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 85712248852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369449233 + ... + 369449464.

It is an arithmetic number, because the mean of its divisors is an integer number (12930727215).

Almost surely, 2^85712248852 is an apocalyptic number.

It is an amenable number.

85712248852 is a deficient number, since it is larger than the sum of its proper divisors (69456477728).

85712248852 is a wasteful number, since it uses less digits than its factorization.

85712248852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738898730 (or 738898728 counting only the distinct ones).

The product of its digits is 2867200, while the sum is 52.

The spelling of 85712248852 in words is "eighty-five billion, seven hundred twelve million, two hundred forty-eight thousand, eight hundred fifty-two".