28318368485 has 16 divisors (see below), whose sum is σ = 38349642240. Its totient is φ = 19884997440.

The previous prime is 28318368439. The next prime is 28318368509. The reversal of 28318368485 is 58486381382.

It is a happy number.

It is not a de Polignac number, because 28318368485 - 2²⁸ = 28049933029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28318368485.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8875637 + ... + 8878826.

It is an arithmetic number, because the mean of its divisors is an integer number (2396852640).

Almost surely, 2^28318368485 is an apocalyptic number.

It is an amenable number.

28318368485 is a deficient number, since it is larger than the sum of its proper divisors (10031273755).

28318368485 is a wasteful number, since it uses less digits than its factorization.

28318368485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17754508.

The product of its digits is 8847360, while the sum is 56.

The spelling of 28318368485 in words is "twenty-eight billion, three hundred eighteen million, three hundred sixty-eight thousand, four hundred eighty-five".