19090305168 has 80 divisors (see below), whose sum is σ = 53820364800. Its totient is φ = 5782746240.

The previous prime is 19090305163. The next prime is 19090305173. The reversal of 19090305168 is 86150309091.

It is an interprime number because it is at equal distance from previous prime (19090305163) and next prime (19090305173).

It is not an unprimeable number, because it can be changed into a prime (19090305163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1874073 + ... + 1884231.

It is an arithmetic number, because the mean of its divisors is an integer number (672754560).

Almost surely, 2^19090305168 is an apocalyptic number.

It is an amenable number.

19090305168 is an abundant number, since it is smaller than the sum of its proper divisors (34730059632).

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

19090305168 is a wasteful number, since it uses less digits than its factorization.

19090305168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13740 (or 13734 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 42.

The spelling of 19090305168 in words is "nineteen billion, ninety million, three hundred five thousand, one hundred sixty-eight".