28318168473 has 8 divisors (see below), whose sum is σ = 43151494848. Its totient is φ = 16181810544.

The previous prime is 28318168447. The next prime is 28318168511. The reversal of 28318168473 is 37486181382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28318168473 - 2⁹ = 28318167961 is a prime.

It is a super-2 number, since 2×28318168473² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28318168273) 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, 674242086 + ... + 674242127.

It is an arithmetic number, because the mean of its divisors is an integer number (5393936856).

Almost surely, 2^28318168473 is an apocalyptic number.

It is an amenable number.

28318168473 is a deficient number, since it is larger than the sum of its proper divisors (14833326375).

28318168473 is a wasteful number, since it uses less digits than its factorization.

28318168473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348484223.

The product of its digits is 1548288, while the sum is 51.

The spelling of 28318168473 in words is "twenty-eight billion, three hundred eighteen million, one hundred sixty-eight thousand, four hundred seventy-three".