28586258772 has 24 divisors (see below), whose sum is σ = 67143004992. Its totient is φ = 9465648000.

The previous prime is 28586258747. The next prime is 28586258807. The reversal of 28586258772 is 27785268582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7886229 + ... + 7889852.

It is an arithmetic number, because the mean of its divisors is an integer number (2797625208).

Almost surely, 2^28586258772 is an apocalyptic number.

It is an amenable number.

28586258772 is an abundant number, since it is smaller than the sum of its proper divisors (38556746220).

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

28586258772 is a wasteful number, since it uses less digits than its factorization.

28586258772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15776239 (or 15776237 counting only the distinct ones).

The product of its digits is 30105600, while the sum is 60.

The spelling of 28586258772 in words is "twenty-eight billion, five hundred eighty-six million, two hundred fifty-eight thousand, seven hundred seventy-two".