80044000000 has 126 divisors (see below), whose sum is σ = 199726584092. Its totient is φ = 32016000000.

The previous prime is 80043999983. The next prime is 80044000007. The reversal of 80044000000 is 44008.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (80044000007) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 3989995 + ... + 4010005.

Almost surely, 2^80044000000 is an apocalyptic number.

80044000000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80044000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99863292046).

80044000000 is an abundant number, since it is smaller than the sum of its proper divisors (119682584092).

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

80044000000 is an frugal number, since it uses more digits than its factorization.

80044000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20057 (or 20018 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 80044000000 its reverse (44008), we get a palindrome (80044044008).

It can be divided in two parts, 8004 and 4000000, that added together give a palindrome (4008004).

The spelling of 80044000000 in words is "eighty billion, forty-four million", and thus it is an aban number.