17349789990 has 128 divisors (see below), whose sum is σ = 45422415360. Its totient is φ = 4215794688.

The previous prime is 17349789971. The next prime is 17349789997. The reversal of 17349789990 is 9998794371.

17349789990 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17349789997) 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 63 ways as a sum of consecutive naturals, for example, 15815122 + ... + 15816218.

It is an arithmetic number, because the mean of its divisors is an integer number (354862620).

Almost surely, 2^17349789990 is an apocalyptic number.

17349789990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 17349789990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22711207680).

17349789990 is an abundant number, since it is smaller than the sum of its proper divisors (28072625370).

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

17349789990 is a wasteful number, since it uses less digits than its factorization.

17349789990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606.

The product of its (nonzero) digits is 30862944, while the sum is 66.

The spelling of 17349789990 in words is "seventeen billion, three hundred forty-nine million, seven hundred eighty-nine thousand, nine hundred ninety".