28887444585873 has 24 divisors (see below), whose sum is σ = 41875336039680. Its totient is φ = 19189578466080.

The previous prime is 28887444585827. The next prime is 28887444585917. The reversal of 28887444585873 is 37858544478882.

28887444585873 is a `hidden beast` number, since 2 + 8 + 8 + 8 + 7 + 44 + 458 + 58 + 73 = 666.

It is not a de Polignac number, because 28887444585873 - 2²² = 28887440391569 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28887444585792 and 28887444585801.

It is not an unprimeable number, because it can be changed into a prime (28887444585823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2771083 + ... + 8090351.

It is an arithmetic number, because the mean of its divisors is an integer number (1744805668320).

Almost surely, 2^{28887444585873} is an apocalyptic number.

It is an amenable number.

28887444585873 is a deficient number, since it is larger than the sum of its proper divisors (12987891453807).

28887444585873 is a wasteful number, since it uses less digits than its factorization.

28887444585873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5321429 (or 5321426 counting only the distinct ones).

The product of its digits is 15414067200, while the sum is 81.

The spelling of 28887444585873 in words is "twenty-eight trillion, eight hundred eighty-seven billion, four hundred forty-four million, five hundred eighty-five thousand, eight hundred seventy-three".