31841858612 has 12 divisors (see below), whose sum is σ = 56486585316. Its totient is φ = 15702834240.

The previous prime is 31841858561. The next prime is 31841858641. The reversal of 31841858612 is 21685814813.

It can be written as a sum of positive squares in 2 ways, for example, as 14406240676 + 17435617936 = 120026^2 + 132044^2 .

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, 54523439 + ... + 54524022.

It is an arithmetic number, because the mean of its divisors is an integer number (4707215443).

Almost surely, 2^31841858612 is an apocalyptic number.

It is an amenable number.

31841858612 is a deficient number, since it is larger than the sum of its proper divisors (24644726704).

31841858612 is a wasteful number, since it uses less digits than its factorization.

31841858612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109047538 (or 109047536 counting only the distinct ones).

The product of its digits is 368640, while the sum is 47.

The spelling of 31841858612 in words is "thirty-one billion, eight hundred forty-one million, eight hundred fifty-eight thousand, six hundred twelve".