17020040879 has 4 divisors (see below), whose sum is σ = 17024079240. Its totient is φ = 17016002520.

The previous prime is 17020040813. The next prime is 17020040881. The reversal of 17020040879 is 97804002071.

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

It is a cyclic number.

It is not a de Polignac number, because 17020040879 - 2³² = 12725073583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17020040179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2012852 + ... + 2021289.

It is an arithmetic number, because the mean of its divisors is an integer number (4256019810).

Almost surely, 2^17020040879 is an apocalyptic number.

17020040879 is a deficient number, since it is larger than the sum of its proper divisors (4038361).

17020040879 is an equidigital number, since it uses as much as digits as its factorization.

17020040879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4038360.

The product of its (nonzero) digits is 28224, while the sum is 38.

The spelling of 17020040879 in words is "seventeen billion, twenty million, forty thousand, eight hundred seventy-nine".