17044991906 has 8 divisors (see below), whose sum is σ = 25708745244. Its totient is φ = 8475410160.

The previous prime is 17044991867. The next prime is 17044991921. The reversal of 17044991906 is 60919944071.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12736251025 + 4308740881 = 112855^2 + 65641^2 .

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

It is a super-3 number, since 3×17044991906³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23542445 + ... + 23543168.

Almost surely, 2^17044991906 is an apocalyptic number.

17044991906 is a deficient number, since it is larger than the sum of its proper divisors (8663753338).

17044991906 is a wasteful number, since it uses less digits than its factorization.

17044991906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47085796.

The product of its (nonzero) digits is 489888, while the sum is 50.

The spelling of 17044991906 in words is "seventeen billion, forty-four million, nine hundred ninety-one thousand, nine hundred six".