28586005872 has 20 divisors (see below), whose sum is σ = 73847181960. Its totient is φ = 9528668608.

The previous prime is 28586005859. The next prime is 28586005897. The reversal of 28586005872 is 27850068582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297770847 + ... + 297770942.

It is an arithmetic number, because the mean of its divisors is an integer number (3692359098).

Almost surely, 2^28586005872 is an apocalyptic number.

It is an amenable number.

28586005872 is an abundant number, since it is smaller than the sum of its proper divisors (45261176088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28586005872 is a wasteful number, since it uses less digits than its factorization.

28586005872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595541800 (or 595541794 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 51.

The spelling of 28586005872 in words is "twenty-eight billion, five hundred eighty-six million, five thousand, eight hundred seventy-two".