31885442852 has 12 divisors (see below), whose sum is σ = 55902670236. Its totient is φ = 15913251360.

The previous prime is 31885442821. The next prime is 31885442881. The reversal of 31885442852 is 25824458813.

It can be written as a sum of positive squares in 2 ways, for example, as 8490516736 + 23394926116 = 92144^2 + 152954^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31885442852.

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, 7365083 + ... + 7369410.

It is an arithmetic number, because the mean of its divisors is an integer number (4658555853).

Almost surely, 2^31885442852 is an apocalyptic number.

It is an amenable number.

31885442852 is a deficient number, since it is larger than the sum of its proper divisors (24017227384).

31885442852 is a wasteful number, since it uses less digits than its factorization.

31885442852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14735038 (or 14735036 counting only the distinct ones).

The product of its digits is 2457600, while the sum is 50.

The spelling of 31885442852 in words is "thirty-one billion, eight hundred eighty-five million, four hundred forty-two thousand, eight hundred fifty-two".