17989408401 has 8 divisors (see below), whose sum is σ = 24023183520. Its totient is φ = 11974286112.

The previous prime is 17989408321. The next prime is 17989408403. The reversal of 17989408401 is 10480498971.

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

It is not a de Polignac number, because 17989408401 - 2¹⁵ = 17989375633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (17989408403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4660956 + ... + 4664813.

It is an arithmetic number, because the mean of its divisors is an integer number (3002897940).

Almost surely, 2^17989408401 is an apocalyptic number.

It is an amenable number.

17989408401 is a deficient number, since it is larger than the sum of its proper divisors (6033775119).

17989408401 is an equidigital number, since it uses as much as digits as its factorization.

17989408401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9326415.

The product of its (nonzero) digits is 580608, while the sum is 51.

The spelling of 17989408401 in words is "seventeen billion, nine hundred eighty-nine million, four hundred eight thousand, four hundred one".