28075850277568 has 224 divisors, whose sum is σ = 59520598824960. Its totient is φ = 13117084323840.

The previous prime is 28075850277533. The next prime is 28075850277577. The reversal of 28075850277568 is 86577205857082.

It is a junction number, because it is equal to n+sod(n) for n = 28075850277497 and 28075850277506.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7286748730 + ... + 7286752582.

It is an arithmetic number, because the mean of its divisors is an integer number (265716959040).

Almost surely, 2^{28075850277568} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28075850277568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29760299412480).

28075850277568 is an abundant number, since it is smaller than the sum of its proper divisors (31444748547392).

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

28075850277568 is a wasteful number, since it uses less digits than its factorization.

28075850277568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4855 (or 4845 counting only the distinct ones).

The product of its (nonzero) digits is 526848000, while the sum is 70.

The spelling of 28075850277568 in words is "twenty-eight trillion, seventy-five billion, eight hundred fifty million, two hundred seventy-seven thousand, five hundred sixty-eight".