17471279393 has 4 divisors (see below), whose sum is σ = 17800926228. Its totient is φ = 17141632560.

The previous prime is 17471279377. The next prime is 17471279407. The reversal of 17471279393 is 39397217471.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12088562704 + 5382716689 = 109948^2 + 73367^2 .

It is a cyclic number.

It is not a de Polignac number, because 17471279393 - 2⁴ = 17471279377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53), and also a Moran number because the ratio is a prime number: 329646781 = 17471279393 / (1 + 7 + 4 + 7 + 1 + 2 + 7 + 9 + 3 + 9 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17471279363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164823338 + ... + 164823443.

It is an arithmetic number, because the mean of its divisors is an integer number (4450231557).

Almost surely, 2^17471279393 is an apocalyptic number.

It is an amenable number.

17471279393 is a deficient number, since it is larger than the sum of its proper divisors (329646835).

17471279393 is an equidigital number, since it uses as much as digits as its factorization.

17471279393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329646834.

The product of its digits is 2000376, while the sum is 53.

The spelling of 17471279393 in words is "seventeen billion, four hundred seventy-one million, two hundred seventy-nine thousand, three hundred ninety-three".