80844444000 has 144 divisors (see below), whose sum is σ = 286917059520. Its totient is φ = 21558508800.

The previous prime is 80844443969. The next prime is 80844444029. The reversal of 80844444000 is 44444808.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 1086840 + ... + 1158839.

It is an arithmetic number, because the mean of its divisors is an integer number (1992479580).

Almost surely, 2^80844444000 is an apocalyptic number.

80844444000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80844444000 is an abundant number, since it is smaller than the sum of its proper divisors (206072615520).

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

80844444000 is a wasteful number, since it uses less digits than its factorization.

80844444000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2245710 (or 2245689 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 36.

Adding to 80844444000 its reverse (44444808), we get a palindrome (80888888808).

The spelling of 80844444000 in words is "eighty billion, eight hundred forty-four million, four hundred forty-four thousand".