28608480513 has 6 divisors (see below), whose sum is σ = 41323360754. Its totient is φ = 19072320336.

The previous prime is 28608480499. The next prime is 28608480529. The reversal of 28608480513 is 31508480682.

28608480513 is a `hidden beast` number, since 28 + 608 + 4 + 8 + 0 + 5 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 28442147904 + 166332609 = 168648^2 + 12897^2 .

It is not a de Polignac number, because 28608480513 - 2⁶ = 28608480449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28608480553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1589360020 + ... + 1589360037.

Almost surely, 2^28608480513 is an apocalyptic number.

It is an amenable number.

28608480513 is a deficient number, since it is larger than the sum of its proper divisors (12714880241).

28608480513 is a wasteful number, since it uses less digits than its factorization.

28608480513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3178720063 (or 3178720060 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 28608480513 in words is "twenty-eight billion, six hundred eight million, four hundred eighty thousand, five hundred thirteen".