28848220826868 has 18 divisors (see below), whose sum is σ = 72921891534674. Its totient is φ = 9616073608944.

The previous prime is 28848220826863. The next prime is 28848220826869. The reversal of 28848220826868 is 86862802284882.

28848220826868 is a `hidden beast` number, since 2 + 8 + 8 + 482 + 2 + 0 + 82 + 6 + 8 + 68 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26700389886564 + 2147830940304 = 5167242^2 + 1465548^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 28848220826796 and 28848220826805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28848220826863) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 400669733671 + ... + 400669733742.

Almost surely, 2^{28848220826868} is an apocalyptic number.

It is an amenable number.

28848220826868 is an abundant number, since it is smaller than the sum of its proper divisors (44073670707806).

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

28848220826868 is a wasteful number, since it uses less digits than its factorization.

28848220826868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801339467423 (or 801339467418 counting only the distinct ones).

The product of its (nonzero) digits is 603979776, while the sum is 72.

The spelling of 28848220826868 in words is "twenty-eight trillion, eight hundred forty-eight billion, two hundred twenty million, eight hundred twenty-six thousand, eight hundred sixty-eight".