31255836068 has 24 divisors (see below), whose sum is σ = 55739388600. Its totient is φ = 15330398720.

The previous prime is 31255836067. The next prime is 31255836071. The reversal of 31255836068 is 86063855213.

It can be written as a sum of positive squares in 4 ways, for example, as 540469504 + 30715366564 = 23248^2 + 175258^2 .

It is not an unprimeable number, because it can be changed into a prime (31255836067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1867658 + ... + 1884318.

It is an arithmetic number, because the mean of its divisors is an integer number (2322474525).

Almost surely, 2^31255836068 is an apocalyptic number.

It is an amenable number.

31255836068 is a deficient number, since it is larger than the sum of its proper divisors (24483552532).

31255836068 is a wasteful number, since it uses less digits than its factorization.

31255836068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25567 (or 25565 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 31255836068 in words is "thirty-one billion, two hundred fifty-five million, eight hundred thirty-six thousand, sixty-eight".