28786049796 has 72 divisors (see below), whose sum is σ = 78162018816. Its totient is φ = 8221590720.

The previous prime is 28786049779. The next prime is 28786049837. The reversal of 28786049796 is 69794068782.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1986690 + ... + 2001126.

Almost surely, 2^28786049796 is an apocalyptic number.

It is an amenable number.

28786049796 is an abundant number, since it is smaller than the sum of its proper divisors (49375969020).

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

28786049796 is a wasteful number, since it uses less digits than its factorization.

28786049796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17849 (or 17840 counting only the distinct ones).

The product of its (nonzero) digits is 73156608, while the sum is 66.

The spelling of 28786049796 in words is "twenty-eight billion, seven hundred eighty-six million, forty-nine thousand, seven hundred ninety-six".