28075018278897 has 40 divisors (see below), whose sum is σ = 42381912528384. Its totient is φ = 18519420526272.

The previous prime is 28075018278893. The next prime is 28075018278917. The reversal of 28075018278897 is 79887281057082.

28075018278897 is a `hidden beast` number, since 2 + 8 + 0 + 7 + 501 + 8 + 27 + 8 + 8 + 97 = 666.

It is not a de Polignac number, because 28075018278897 - 2² = 28075018278893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28075018278893) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8542848 + ... + 11363550.

Almost surely, 2^{28075018278897} is an apocalyptic number.

28075018278897 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

28075018278897 is a deficient number, since it is larger than the sum of its proper divisors (14306894249487).

28075018278897 is a wasteful number, since it uses less digits than its factorization.

28075018278897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2822011 (or 2822002 counting only the distinct ones).

The product of its (nonzero) digits is 252887040, while the sum is 72.

The spelling of 28075018278897 in words is "twenty-eight trillion, seventy-five billion, eighteen million, two hundred seventy-eight thousand, eight hundred ninety-seven".