28545616827 has 96 divisors (see below), whose sum is σ = 53892034560. Its totient is φ = 14129372160.

The previous prime is 28545616817. The next prime is 28545616843. The reversal of 28545616827 is 72861654582.

28545616827 is a `hidden beast` number, since 2 + 8 + 5 + 456 + 168 + 27 = 666.

It is not a de Polignac number, because 28545616827 - 2²⁰ = 28544568251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28545616817) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4995502 + ... + 5001212.

It is an arithmetic number, because the mean of its divisors is an integer number (561375360).

Almost surely, 2^28545616827 is an apocalyptic number.

28545616827 is a deficient number, since it is larger than the sum of its proper divisors (25346417733).

28545616827 is a wasteful number, since it uses less digits than its factorization.

28545616827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6113 (or 6110 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 54.

The spelling of 28545616827 in words is "twenty-eight billion, five hundred forty-five million, six hundred sixteen thousand, eight hundred twenty-seven".