28586857744 has 20 divisors (see below), whose sum is σ = 55427774940. Its totient is φ = 14282915840.

The previous prime is 28586857709. The next prime is 28586857801. The reversal of 28586857744 is 44775868582.

It can be written as a sum of positive squares in 2 ways, for example, as 7420099600 + 21166758144 = 86140^2 + 145488^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634609 + ... + 678160.

It is an arithmetic number, because the mean of its divisors is an integer number (2771388747).

Almost surely, 2^28586857744 is an apocalyptic number.

It is an amenable number.

28586857744 is a deficient number, since it is larger than the sum of its proper divisors (26840917196).

28586857744 is a wasteful number, since it uses less digits than its factorization.

28586857744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314138 (or 1314132 counting only the distinct ones).

The product of its digits is 120422400, while the sum is 64.

The spelling of 28586857744 in words is "twenty-eight billion, five hundred eighty-six million, eight hundred fifty-seven thousand, seven hundred forty-four".