28930060688 has 10 divisors (see below), whose sum is σ = 56051992614. Its totient is φ = 14465030336.

The previous prime is 28930060667. The next prime is 28930060697. The reversal of 28930060688 is 88606003982.

It can be written as a sum of positive squares in only one way, i.e., 28112558224 + 817502464 = 167668^2 + 28592^2 .

It is a super-2 number, since 2×28930060688² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 904064381 + ... + 904064412.

Almost surely, 2^28930060688 is an apocalyptic number.

It is an amenable number.

28930060688 is a deficient number, since it is larger than the sum of its proper divisors (27121931926).

28930060688 is a wasteful number, since it uses less digits than its factorization.

28930060688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808128801 (or 1808128795 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 50.

The spelling of 28930060688 in words is "twenty-eight billion, nine hundred thirty million, sixty thousand, six hundred eighty-eight".