28317317007 has 8 divisors (see below), whose sum is σ = 43150197376. Its totient is φ = 16181323992.

The previous prime is 28317316931. The next prime is 28317317101. The reversal of 28317317007 is 70071371382.

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

It is not a de Polignac number, because 28317317007 - 2¹² = 28317312911 is a prime.

It is the 168278-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28317317107) by changing a digit.

It is a nontrivial repunit in base 168277.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 674221813 + ... + 674221854.

It is an arithmetic number, because the mean of its divisors is an integer number (5393774672).

Almost surely, 2^28317317007 is an apocalyptic number.

28317317007 is a deficient number, since it is larger than the sum of its proper divisors (14832880369).

28317317007 is a wasteful number, since it uses less digits than its factorization.

28317317007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348443677.

The product of its (nonzero) digits is 49392, while the sum is 39.

Adding to 28317317007 its reverse (70071371382), we get a palindrome (98388688389).

The spelling of 28317317007 in words is "twenty-eight billion, three hundred seventeen million, three hundred seventeen thousand, seven".