28318131628828 has 24 divisors (see below), whose sum is σ = 50396975919360. Its totient is φ = 13918998518640.

The previous prime is 28318131628763. The next prime is 28318131628847. The reversal of 28318131628828 is 82882613181382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62709375 + ... + 63159337.

It is an arithmetic number, because the mean of its divisors is an integer number (2099873996640).

Almost surely, 2^{28318131628828} is an apocalyptic number.

It is an amenable number.

28318131628828 is a deficient number, since it is larger than the sum of its proper divisors (22078844290532).

28318131628828 is a wasteful number, since it uses less digits than its factorization.

28318131628828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716697 (or 716695 counting only the distinct ones).

The product of its digits is 14155776, while the sum is 61.

The spelling of 28318131628828 in words is "twenty-eight trillion, three hundred eighteen billion, one hundred thirty-one million, six hundred twenty-eight thousand, eight hundred twenty-eight".