85644327252 has 48 divisors (see below), whose sum is σ = 218069208000. Its totient is φ = 25945032960.

The previous prime is 85644327203. The next prime is 85644327283. The reversal of 85644327252 is 25272344658.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351624 + ... + 543072.

It is an arithmetic number, because the mean of its divisors is an integer number (4543108500).

Almost surely, 2^85644327252 is an apocalyptic number.

It is an amenable number.

85644327252 is an abundant number, since it is smaller than the sum of its proper divisors (132424880748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85644327252 is a wasteful number, since it uses less digits than its factorization.

85644327252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194856 (or 194854 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 48.

The spelling of 85644327252 in words is "eighty-five billion, six hundred forty-four million, three hundred twenty-seven thousand, two hundred fifty-two".