80003000028 has 192 divisors, whose sum is σ = 231141657600. Its totient is φ = 21023815680.

The previous prime is 80003000017. The next prime is 80003000053. The reversal of 80003000028 is 82000030008.

80003000028 is a nontrivial binomial coefficient, being equal to C(400008, 2).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 80002999968 and 80003000013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33599398 + ... + 33601778.

It is an arithmetic number, because the mean of its divisors is an integer number (1203862800).

Almost surely, 2^80003000028 is an apocalyptic number.

80003000028 is the 400007-th triangular number and also the 200004-th hexagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80003000028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115570828800).

80003000028 is an abundant number, since it is smaller than the sum of its proper divisors (151138657572).

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

80003000028 is a wasteful number, since it uses less digits than its factorization.

80003000028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3020 (or 3018 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The spelling of 80003000028 in words is "eighty billion, three million, twenty-eight", and thus it is an aban number and an uban number.