17421444368 has 20 divisors (see below), whose sum is σ = 33770665920. Its totient is φ = 8706433824.

The previous prime is 17421444361. The next prime is 17421444407. The reversal of 17421444368 is 86344412471.

It is not an unprimeable number, because it can be changed into a prime (17421444361) 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, 234380 + ... + 299627.

It is an arithmetic number, because the mean of its divisors is an integer number (1688533296).

Almost surely, 2^17421444368 is an apocalyptic number.

It is an amenable number.

17421444368 is a deficient number, since it is larger than the sum of its proper divisors (16349221552).

17421444368 is a wasteful number, since it uses less digits than its factorization.

17421444368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536054 (or 536048 counting only the distinct ones).

The product of its digits is 516096, while the sum is 44.

The spelling of 17421444368 in words is "seventeen billion, four hundred twenty-one million, four hundred forty-four thousand, three hundred sixty-eight".