28169780592 has 80 divisors (see below), whose sum is σ = 73422602240. Its totient is φ = 9306130176.

The previous prime is 28169780591. The next prime is 28169780599. The reversal of 28169780592 is 29508796182.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28169780591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7794978 + ... + 7798590.

It is an arithmetic number, because the mean of its divisors is an integer number (917782528).

Almost surely, 2^28169780592 is an apocalyptic number.

It is an amenable number.

28169780592 is an abundant number, since it is smaller than the sum of its proper divisors (45252821648).

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

28169780592 is a wasteful number, since it uses less digits than its factorization.

28169780592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5030 (or 5024 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 28169780592 in words is "twenty-eight billion, one hundred sixty-nine million, seven hundred eighty thousand, five hundred ninety-two".