28230681164 has 24 divisors (see below), whose sum is σ = 56516183808. Its totient is φ = 12087115920.

The previous prime is 28230681161. The next prime is 28230681203. The reversal of 28230681164 is 46118603282.

It is not an unprimeable number, because it can be changed into a prime (28230681161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460094 + ... + 517829.

It is an arithmetic number, because the mean of its divisors is an integer number (2354840992).

Almost surely, 2^28230681164 is an apocalyptic number.

It is an amenable number.

28230681164 is an abundant number, since it is smaller than the sum of its proper divisors (28285502644).

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

28230681164 is a wasteful number, since it uses less digits than its factorization.

28230681164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978965 (or 978963 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 28230681164 in words is "twenty-eight billion, two hundred thirty million, six hundred eighty-one thousand, one hundred sixty-four".