28171767313 has 8 divisors (see below), whose sum is σ = 28596272832. Its totient is φ = 27747380496.

The previous prime is 28171767259. The next prime is 28171767317. The reversal of 28171767313 is 31376717182.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28171767313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28171767317) 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, 526356 + ... + 577402.

It is an arithmetic number, because the mean of its divisors is an integer number (3574534104).

Almost surely, 2^28171767313 is an apocalyptic number.

It is an amenable number.

28171767313 is a deficient number, since it is larger than the sum of its proper divisors (424505519).

28171767313 is an equidigital number, since it uses as much as digits as its factorization.

28171767313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59351.

The product of its digits is 296352, while the sum is 46.

It can be divided in two parts, 281717 and 67313, that added together give a triangular number (349030 = T₈₃₅).

The spelling of 28171767313 in words is "twenty-eight billion, one hundred seventy-one million, seven hundred sixty-seven thousand, three hundred thirteen".