17149742208 has 96 divisors (see below), whose sum is σ = 49464043200. Its totient is φ = 5703390720.

The previous prime is 17149742147. The next prime is 17149742243. The reversal of 17149742208 is 80224794171.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×17149742208² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 488773 + ... + 522683.

It is an arithmetic number, because the mean of its divisors is an integer number (515250450).

Almost surely, 2^17149742208 is an apocalyptic number.

17149742208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 17149742208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24732021600).

17149742208 is an abundant number, since it is smaller than the sum of its proper divisors (32314300992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

17149742208 is a wasteful number, since it uses less digits than its factorization.

17149742208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34370 (or 34355 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 17149742208 in words is "seventeen billion, one hundred forty-nine million, seven hundred forty-two thousand, two hundred eight".