28103503056 has 20 divisors (see below), whose sum is σ = 72600716352. Its totient is φ = 9367834336.

The previous prime is 28103503037. The next prime is 28103503061. The reversal of 28103503056 is 65030530182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292744776 + ... + 292744871.

Almost surely, 2^28103503056 is an apocalyptic number.

It is an amenable number.

28103503056 is an abundant number, since it is smaller than the sum of its proper divisors (44497213296).

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

28103503056 is a wasteful number, since it uses less digits than its factorization.

28103503056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585489658 (or 585489652 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 28103503056 in words is "twenty-eight billion, one hundred three million, five hundred three thousand, fifty-six".