28528362337 has 4 divisors (see below), whose sum is σ = 30206501316. Its totient is φ = 26850223360.

The previous prime is 28528362329. The next prime is 28528362349. The reversal of 28528362337 is 73326382582.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11979083601 + 16549278736 = 109449^2 + 128644^2 .

It is a cyclic number.

It is not a de Polignac number, because 28528362337 - 2³ = 28528362329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28528363337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 839069464 + ... + 839069497.

It is an arithmetic number, because the mean of its divisors is an integer number (7551625329).

Almost surely, 2^28528362337 is an apocalyptic number.

It is an amenable number.

28528362337 is a deficient number, since it is larger than the sum of its proper divisors (1678138979).

28528362337 is a wasteful number, since it uses less digits than its factorization.

28528362337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678138978.

The product of its digits is 2903040, while the sum is 49.

The spelling of 28528362337 in words is "twenty-eight billion, five hundred twenty-eight million, three hundred sixty-two thousand, three hundred thirty-seven".