28030850000 has 60 divisors (see below), whose sum is σ = 67882991148. Its totient is φ = 11212320000.

The previous prime is 28030849999. The next prime is 28030850033. The reversal of 28030850000 is 5803082.

It can be written as a sum of positive squares in 6 ways, for example, as 20951983504 + 7078866496 = 144748^2 + 84136^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230309 + ... + 330308.

Almost surely, 2^28030850000 is an apocalyptic number.

28030850000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28030850000 is an abundant number, since it is smaller than the sum of its proper divisors (39852141148).

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

28030850000 is an frugal number, since it uses more digits than its factorization.

28030850000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560650 (or 560624 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The spelling of 28030850000 in words is "twenty-eight billion, thirty million, eight hundred fifty thousand".