17429899417 has 12 divisors (see below), whose sum is σ = 21468280500. Its totient is φ = 14061094656.

The previous prime is 17429899387. The next prime is 17429899429. The reversal of 17429899417 is 71499892471.

It can be written as a sum of positive squares in 2 ways, for example, as 7231121296 + 10198778121 = 85036^2 + 100989^2 .

It is not a de Polignac number, because 17429899417 - 2¹⁹ = 17429375129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17429891417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10461292 + ... + 10462957.

It is an arithmetic number, because the mean of its divisors is an integer number (1789023375).

Almost surely, 2^17429899417 is an apocalyptic number.

17429899417 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

17429899417 is a deficient number, since it is larger than the sum of its proper divisors (4038381083).

17429899417 is a wasteful number, since it uses less digits than its factorization.

17429899417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20924280 (or 20924273 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 61.

The spelling of 17429899417 in words is "seventeen billion, four hundred twenty-nine million, eight hundred ninety-nine thousand, four hundred seventeen".