80444381250 has 96 divisors (see below), whose sum is σ = 201332863872. Its totient is φ = 21426800000.

The previous prime is 80444381243. The next prime is 80444381287. The reversal of 80444381250 is 5218344408.

It is a junction number, because it is equal to n+sod(n) for n = 80444381199 and 80444381208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20566795 + ... + 20570705.

It is an arithmetic number, because the mean of its divisors is an integer number (2097217332).

Almost surely, 2^80444381250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80444381250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100666431936).

80444381250 is an abundant number, since it is smaller than the sum of its proper divisors (120888482622).

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

80444381250 is a wasteful number, since it uses less digits than its factorization.

80444381250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5038 (or 5018 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 39.

The spelling of 80444381250 in words is "eighty billion, four hundred forty-four million, three hundred eighty-one thousand, two hundred fifty".