30028027528 has 8 divisors (see below), whose sum is σ = 56302551630. Its totient is φ = 15014013760.

The previous prime is 30028027511. The next prime is 30028027529. The reversal of 30028027528 is 82572082003.

It can be written as a sum of positive squares in only one way, i.e., 30025265284 + 2762244 = 173278^2 + 1662^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (30028027529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1876751713 + ... + 1876751728.

Almost surely, 2^30028027528 is an apocalyptic number.

It is an amenable number.

30028027528 is a deficient number, since it is larger than the sum of its proper divisors (26274524102).

30028027528 is a wasteful number, since it uses less digits than its factorization.

30028027528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3753503447 (or 3753503443 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The spelling of 30028027528 in words is "thirty billion, twenty-eight million, twenty-seven thousand, five hundred twenty-eight".