28097357164 has 12 divisors (see below), whose sum is σ = 49224355488. Its totient is φ = 14033255600.

The previous prime is 28097357143. The next prime is 28097357179. The reversal of 28097357164 is 46175379082.

It is a super-2 number, since 2×28097357164² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3851647 + ... + 3858934.

It is an arithmetic number, because the mean of its divisors is an integer number (4102029624).

It is a 1-persistent number, because it is pandigital, but 2⋅28097357164 = 56194714328 is not.

Almost surely, 2^28097357164 is an apocalyptic number.

It is an amenable number.

28097357164 is a deficient number, since it is larger than the sum of its proper divisors (21126998324).

28097357164 is a wasteful number, since it uses less digits than its factorization.

28097357164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7711496 (or 7711494 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 28097357164 in words is "twenty-eight billion, ninety-seven million, three hundred fifty-seven thousand, one hundred sixty-four".