28528245418 has 4 divisors (see below), whose sum is σ = 42792368130. Its totient is φ = 14264122708.

The previous prime is 28528245413. The next prime is 28528245451. The reversal of 28528245418 is 81454282582.

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., 19472248849 + 9055996569 = 139543^2 + 95163^2 .

It is not an unprimeable number, because it can be changed into a prime (28528245413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7132061353 + ... + 7132061356.

Almost surely, 2^28528245418 is an apocalyptic number.

28528245418 is a deficient number, since it is larger than the sum of its proper divisors (14264122712).

28528245418 is a wasteful number, since it uses less digits than its factorization.

28528245418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14264122711.

The product of its digits is 1638400, while the sum is 49.

The spelling of 28528245418 in words is "twenty-eight billion, five hundred twenty-eight million, two hundred forty-five thousand, four hundred eighteen".