17197320090 has 64 divisors (see below), whose sum is σ = 43491738240. Its totient is φ = 4339998720.

The previous prime is 17197320089. The next prime is 17197320097. The reversal of 17197320090 is 9002379171.

It is not an unprimeable number, because it can be changed into a prime (17197320097) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 541450 + ... + 572330.

It is an arithmetic number, because the mean of its divisors is an integer number (679558410).

Almost surely, 2^17197320090 is an apocalyptic number.

17197320090 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 17197320090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21745869120).

17197320090 is an abundant number, since it is smaller than the sum of its proper divisors (26294418150).

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

17197320090 is a wasteful number, since it uses less digits than its factorization.

17197320090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31887.

The product of its (nonzero) digits is 23814, while the sum is 39.

The spelling of 17197320090 in words is "seventeen billion, one hundred ninety-seven million, three hundred twenty thousand, ninety".