28796449236 has 24 divisors (see below), whose sum is σ = 70113094464. Its totient is φ = 9181476480.

The previous prime is 28796449069. The next prime is 28796449237. The reversal of 28796449236 is 63294469782.

It is a self number, because there is not a number n which added to its sum of digits gives 28796449236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28796449237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52167205 + ... + 52167756.

It is an arithmetic number, because the mean of its divisors is an integer number (2921378936).

Almost surely, 2^28796449236 is an apocalyptic number.

It is an amenable number.

28796449236 is an abundant number, since it is smaller than the sum of its proper divisors (41316645228).

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

28796449236 is a wasteful number, since it uses less digits than its factorization.

28796449236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104334991 (or 104334989 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 60.

The spelling of 28796449236 in words is "twenty-eight billion, seven hundred ninety-six million, four hundred forty-nine thousand, two hundred thirty-six".