28317882036 has 96 divisors (see below), whose sum is σ = 69978585600. Its totient is φ = 8887950720.

The previous prime is 28317882029. The next prime is 28317882041. The reversal of 28317882036 is 63028871382.

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, 44039931 + ... + 44040573.

It is an arithmetic number, because the mean of its divisors is an integer number (728943600).

Almost surely, 2^28317882036 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 28317882036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34989292800).

28317882036 is an abundant number, since it is smaller than the sum of its proper divisors (41660703564).

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

28317882036 is a wasteful number, since it uses less digits than its factorization.

28317882036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549 (or 1547 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 28317882036 in words is "twenty-eight billion, three hundred seventeen million, eight hundred eighty-two thousand, thirty-six".