28029480280 has 16 divisors (see below), whose sum is σ = 63066330720. Its totient is φ = 11211792096.

The previous prime is 28029480209. The next prime is 28029480289. The reversal of 28029480280 is 8208492082.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28029480289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350368464 + ... + 350368543.

It is an arithmetic number, because the mean of its divisors is an integer number (3941645670).

Almost surely, 2^28029480280 is an apocalyptic number.

28029480280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28029480280 is an abundant number, since it is smaller than the sum of its proper divisors (35036850440).

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

28029480280 is a wasteful number, since it uses less digits than its factorization.

28029480280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700737018 (or 700737014 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The spelling of 28029480280 in words is "twenty-eight billion, twenty-nine million, four hundred eighty thousand, two hundred eighty".