28056473870 has 32 divisors (see below), whose sum is σ = 53219177280. Its totient is φ = 10628358400.

The previous prime is 28056473857. The next prime is 28056473873. The reversal of 28056473870 is 7837465082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28056473873) 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, 580655 + ... + 627114.

It is an arithmetic number, because the mean of its divisors is an integer number (1663099290).

Almost surely, 2^28056473870 is an apocalyptic number.

28056473870 is a deficient number, since it is larger than the sum of its proper divisors (25162703410).

28056473870 is a wasteful number, since it uses less digits than its factorization.

28056473870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207900.

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 28056473870 in words is "twenty-eight billion, fifty-six million, four hundred seventy-three thousand, eight hundred seventy".