28084064506 has 4 divisors (see below), whose sum is σ = 42126096762. Its totient is φ = 14042032252.

The previous prime is 28084064479. The next prime is 28084064539. The reversal of 28084064506 is 60546048082.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27858614281 + 225450225 = 166909^2 + 15015^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7021016125 + ... + 7021016128.

Almost surely, 2^28084064506 is an apocalyptic number.

28084064506 is a deficient number, since it is larger than the sum of its proper divisors (14042032256).

28084064506 is a wasteful number, since it uses less digits than its factorization.

28084064506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14042032255.

The product of its (nonzero) digits is 368640, while the sum is 43.

The spelling of 28084064506 in words is "twenty-eight billion, eighty-four million, sixty-four thousand, five hundred six".