17422686979 has 4 divisors (see below), whose sum is σ = 17751416976. Its totient is φ = 17093956984.

The previous prime is 17422686923. The next prime is 17422687001. The reversal of 17422686979 is 97968622471.

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 17422686979 - 2⁹ = 17422686467 is a prime.

It is a super-2 number, since 2×17422686979² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17422689979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164364919 + ... + 164365024.

It is an arithmetic number, because the mean of its divisors is an integer number (4437854244).

Almost surely, 2^17422686979 is an apocalyptic number.

17422686979 is a deficient number, since it is larger than the sum of its proper divisors (328729997).

17422686979 is an equidigital number, since it uses as much as digits as its factorization.

17422686979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328729996.

The product of its digits is 18289152, while the sum is 61.

The spelling of 17422686979 in words is "seventeen billion, four hundred twenty-two million, six hundred eighty-six thousand, nine hundred seventy-nine".