31283068016 has 80 divisors (see below), whose sum is σ = 67187366400. Its totient is φ = 14043642624.

The previous prime is 31283068009. The next prime is 31283068027. The reversal of 31283068016 is 61086038213.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 741605 + ... + 782651.

It is an arithmetic number, because the mean of its divisors is an integer number (839842080).

Almost surely, 2^31283068016 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 31283068016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33593683200).

31283068016 is an abundant number, since it is smaller than the sum of its proper divisors (35904298384).

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

31283068016 is a wasteful number, since it uses less digits than its factorization.

31283068016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41206 (or 41200 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 31283068016 in words is "thirty-one billion, two hundred eighty-three million, sixty-eight thousand, sixteen".