39883681812 has 96 divisors (see below), whose sum is σ = 107949022720. Its totient is φ = 11355603840.

The previous prime is 39883681801. The next prime is 39883681837. The reversal of 39883681812 is 21818638893.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29014 + ... + 283917.

Almost surely, 2^39883681812 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 39883681812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53974511360).

39883681812 is an abundant number, since it is smaller than the sum of its proper divisors (68065340908).

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

39883681812 is a wasteful number, since it uses less digits than its factorization.

39883681812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313013 (or 313011 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 57.

The spelling of 39883681812 in words is "thirty-nine billion, eight hundred eighty-three million, six hundred eighty-one thousand, eight hundred twelve".