28256814716 has 24 divisors (see below), whose sum is σ = 53485797120. Its totient is φ = 12984651072.

The previous prime is 28256814679. The next prime is 28256814737. The reversal of 28256814716 is 61741865282.

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, 1174556 + ... + 1198371.

It is an arithmetic number, because the mean of its divisors is an integer number (2228574880).

Almost surely, 2^28256814716 is an apocalyptic number.

28256814716 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28256814716 is a deficient number, since it is larger than the sum of its proper divisors (25228982404).

28256814716 is a wasteful number, since it uses less digits than its factorization.

28256814716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373173 (or 2373171 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 50.

The spelling of 28256814716 in words is "twenty-eight billion, two hundred fifty-six million, eight hundred fourteen thousand, seven hundred sixteen".