17421456716 has 12 divisors (see below), whose sum is σ = 30905187432. Its totient is φ = 8591403168.

The previous prime is 17421456713. The next prime is 17421456749. The reversal of 17421456716 is 61765412471.

It is not an unprimeable number, because it can be changed into a prime (17421456713) 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, 29830970 + ... + 29831553.

It is an arithmetic number, because the mean of its divisors is an integer number (2575432286).

Almost surely, 2^17421456716 is an apocalyptic number.

It is an amenable number.

17421456716 is a deficient number, since it is larger than the sum of its proper divisors (13483730716).

17421456716 is a wasteful number, since it uses less digits than its factorization.

17421456716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59662600 (or 59662598 counting only the distinct ones).

The product of its digits is 282240, while the sum is 44.

The spelling of 17421456716 in words is "seventeen billion, four hundred twenty-one million, four hundred fifty-six thousand, seven hundred sixteen".