28078560587 has 16 divisors (see below), whose sum is σ = 35258899200. Its totient is φ = 21721983840.

The previous prime is 28078560571. The next prime is 28078560599. The reversal of 28078560587 is 78506587082.

It is a cyclic number.

It is not a de Polignac number, because 28078560587 - 2⁴ = 28078560571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22078560587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1301012 + ... + 1322417.

It is an arithmetic number, because the mean of its divisors is an integer number (2203681200).

Almost surely, 2^28078560587 is an apocalyptic number.

28078560587 is a deficient number, since it is larger than the sum of its proper divisors (7180338613).

28078560587 is a wasteful number, since it uses less digits than its factorization.

28078560587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623586.

The product of its (nonzero) digits is 7526400, while the sum is 56.

The spelling of 28078560587 in words is "twenty-eight billion, seventy-eight million, five hundred sixty thousand, five hundred eighty-seven".