28374876881876 has 96 divisors (see below), whose sum is σ = 59377305415680. Its totient is φ = 11600487360000.

The previous prime is 28374876881843. The next prime is 28374876881947. The reversal of 28374876881876 is 67818867847382.

It is a junction number, because it is equal to n+sod(n) for n = 28374876881794 and 28374876881803.

It is a congruent number.

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, 1724803451 + ... + 1724819901.

It is an arithmetic number, because the mean of its divisors is an integer number (618513598080).

Almost surely, 2^{28374876881876} 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 28374876881876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29688652707840).

28374876881876 is an abundant number, since it is smaller than the sum of its proper divisors (31002428533804).

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

28374876881876 is a wasteful number, since it uses less digits than its factorization.

28374876881876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23565 (or 23563 counting only the distinct ones).

The product of its digits is 9710862336, while the sum is 83.

The spelling of 28374876881876 in words is "twenty-eight trillion, three hundred seventy-four billion, eight hundred seventy-six million, eight hundred eighty-one thousand, eight hundred seventy-six".