852149181709 has 32 divisors (see below), whose sum is σ = 986627840000. Its totient is φ = 720914281920.

The previous prime is 852149181677. The next prime is 852149181739. The reversal of 852149181709 is 907181941258.

It is not a de Polignac number, because 852149181709 - 2⁵ = 852149181677 is a prime.

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 852149181709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (852149181739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 240243274 + ... + 240246820.

It is an arithmetic number, because the mean of its divisors is an integer number (30832120000).

Almost surely, 2^852149181709 is an apocalyptic number.

It is an amenable number.

852149181709 is a deficient number, since it is larger than the sum of its proper divisors (134478658291).

852149181709 is a wasteful number, since it uses less digits than its factorization.

852149181709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4793.

The product of its (nonzero) digits is 1451520, while the sum is 55.

The spelling of 852149181709 in words is "eight hundred fifty-two billion, one hundred forty-nine million, one hundred eighty-one thousand, seven hundred nine".