28759216328 has 16 divisors (see below), whose sum is σ = 54005119260. Its totient is φ = 14357851200.

The previous prime is 28759216313. The next prime is 28759216331. The reversal of 28759216328 is 82361295782.

It can be written as a sum of positive squares in 2 ways, for example, as 25197752644 + 3561463684 = 158738^2 + 59678^2 .

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 28759216328.

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, 2714003 + ... + 2724578.

Almost surely, 2^28759216328 is an apocalyptic number.

It is an amenable number.

28759216328 is a deficient number, since it is larger than the sum of its proper divisors (25245902932).

28759216328 is a wasteful number, since it uses less digits than its factorization.

28759216328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5439248 (or 5439244 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 53.

The spelling of 28759216328 in words is "twenty-eight billion, seven hundred fifty-nine million, two hundred sixteen thousand, three hundred twenty-eight".