83944083700 has 72 divisors (see below), whose sum is σ = 183853404504. Its totient is φ = 33266688000.

The previous prime is 83944083697. The next prime is 83944083721. The reversal of 83944083700 is 738044938.

It can be written as a sum of positive squares in 12 ways, for example, as 3285811684 + 80658272016 = 57322^2 + 284004^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4738860 + ... + 4756540.

It is an arithmetic number, because the mean of its divisors is an integer number (2553519507).

Almost surely, 2^83944083700 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 83944083700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91926702252).

83944083700 is an abundant number, since it is smaller than the sum of its proper divisors (99909320804).

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

83944083700 is a wasteful number, since it uses less digits than its factorization.

83944083700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18133 (or 18126 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 83944083700 in words is "eighty-three billion, nine hundred forty-four million, eighty-three thousand, seven hundred".