31368273860 has 144 divisors (see below), whose sum is σ = 87244311168. Its totient is φ = 9201868800.

The previous prime is 31368273829. The next prime is 31368273907. The reversal of 31368273860 is 6837286313.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 409820 + ... + 480300.

It is an arithmetic number, because the mean of its divisors is an integer number (605863272).

Almost surely, 2^31368273860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31368273860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43622155584).

31368273860 is an abundant number, since it is smaller than the sum of its proper divisors (55876037308).

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

31368273860 is a wasteful number, since it uses less digits than its factorization.

31368273860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70542 (or 70523 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 31368273860 in words is "thirty-one billion, three hundred sixty-eight million, two hundred seventy-three thousand, eight hundred sixty".