31641312260 has 48 divisors (see below), whose sum is σ = 67772409600. Its totient is φ = 12406328064.

The previous prime is 31641312251. The next prime is 31641312281. The reversal of 31641312260 is 6221314613.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 147584 + ... + 291656.

It is an arithmetic number, because the mean of its divisors is an integer number (1411925200).

Almost surely, 2^31641312260 is an apocalyptic number.

It is an amenable number.

31641312260 is an abundant number, since it is smaller than the sum of its proper divisors (36131097340).

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

31641312260 is a wasteful number, since it uses less digits than its factorization.

31641312260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144300 (or 144298 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 31641312260 its reverse (6221314613), we get a palindrome (37862626873).

The spelling of 31641312260 in words is "thirty-one billion, six hundred forty-one million, three hundred twelve thousand, two hundred sixty".