28826209164 has 12 divisors (see below), whose sum is σ = 67261154744. Its totient is φ = 9608736384.

The previous prime is 28826209163. The next prime is 28826209169. The reversal of 28826209164 is 46190262882.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (28826209163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1201092037 + ... + 1201092060.

Almost surely, 2^28826209164 is an apocalyptic number.

It is an amenable number.

28826209164 is an abundant number, since it is smaller than the sum of its proper divisors (38434945580).

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

28826209164 is a wasteful number, since it uses less digits than its factorization.

28826209164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402184104 (or 2402184102 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 28826209164 in words is "twenty-eight billion, eight hundred twenty-six million, two hundred nine thousand, one hundred sixty-four".