28885728586 has 64 divisors (see below), whose sum is σ = 51661209600. Its totient is φ = 11940177600.

The previous prime is 28885728577. The next prime is 28885728587. The reversal of 28885728586 is 68582758882.

It is not an unprimeable number, because it can be changed into a prime (28885728587) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12900055 + ... + 12902293.

It is an arithmetic number, because the mean of its divisors is an integer number (807206400).

Almost surely, 2^28885728586 is an apocalyptic number.

28885728586 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28885728586 is a deficient number, since it is larger than the sum of its proper divisors (22775481014).

28885728586 is a wasteful number, since it uses less digits than its factorization.

28885728586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2915.

The product of its digits is 137625600, while the sum is 67.

The spelling of 28885728586 in words is "twenty-eight billion, eight hundred eighty-five million, seven hundred twenty-eight thousand, five hundred eighty-six".