28018437080 has 32 divisors (see below), whose sum is σ = 64507568400. Its totient is φ = 10946737536.

The previous prime is 28018436993. The next prime is 28018437127. The reversal of 28018437080 is 8073481082.

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 7 ways as a sum of consecutive naturals, for example, 8143175 + ... + 8146614.

Almost surely, 2^28018437080 is an apocalyptic number.

28018437080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28018437080 is an abundant number, since it is smaller than the sum of its proper divisors (36489131320).

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

28018437080 is a wasteful number, since it uses less digits than its factorization.

28018437080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16289843 (or 16289839 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The spelling of 28018437080 in words is "twenty-eight billion, eighteen million, four hundred thirty-seven thousand, eighty".