28090280016 has 60 divisors (see below), whose sum is σ = 78629942560. Its totient is φ = 9361500480.

The previous prime is 28090280003. The next prime is 28090280041. The reversal of 28090280016 is 61008209082.

28090280016 is a `hidden beast` number, since 280 + 90 + 280 + 0 + 16 = 666.

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 11 ways as a sum of consecutive naturals, for example, 797661 + ... + 832131.

Almost surely, 2^28090280016 is an apocalyptic number.

It is an amenable number.

28090280016 is an abundant number, since it is smaller than the sum of its proper divisors (50539662544).

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

28090280016 is a wasteful number, since it uses less digits than its factorization.

28090280016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40144 (or 40135 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

Adding to 28090280016 its reverse (61008209082), we get a palindrome (89098489098).

The spelling of 28090280016 in words is "twenty-eight billion, ninety million, two hundred eighty thousand, sixteen".