28030503028 has 12 divisors (see below), whose sum is σ = 53512778592. Its totient is φ = 12741137720.

The previous prime is 28030503013. The next prime is 28030503049. The reversal of 28030503028 is 82030503082.

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, 318528400 + ... + 318528487.

It is an arithmetic number, because the mean of its divisors is an integer number (4459398216).

Almost surely, 2^28030503028 is an apocalyptic number.

It is an amenable number.

28030503028 is a deficient number, since it is larger than the sum of its proper divisors (25482275564).

28030503028 is a wasteful number, since it uses less digits than its factorization.

28030503028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637056902 (or 637056900 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 28030503028 in words is "twenty-eight billion, thirty million, five hundred three thousand, twenty-eight".