28528457287368 has 16 divisors (see below), whose sum is σ = 71321143218480. Its totient is φ = 9509485762448.

The previous prime is 28528457287349. The next prime is 28528457287391. The reversal of 28528457287368 is 86378275482582.

It is a self number, because there is not a number n which added to its sum of digits gives 28528457287368.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 594342860130 + ... + 594342860177.

It is an arithmetic number, because the mean of its divisors is an integer number (4457571451155).

Almost surely, 2^{28528457287368} is an apocalyptic number.

It is an amenable number.

28528457287368 is an abundant number, since it is smaller than the sum of its proper divisors (42792685931112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28528457287368 is a wasteful number, since it uses less digits than its factorization.

28528457287368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188685720316 (or 1188685720312 counting only the distinct ones).

The product of its digits is 2890137600, while the sum is 75.

The spelling of 28528457287368 in words is "twenty-eight trillion, five hundred twenty-eight billion, four hundred fifty-seven million, two hundred eighty-seven thousand, three hundred sixty-eight".