1868091359217 has 8 divisors (see below), whose sum is σ = 2518774866720. Its totient is φ = 1231401045600.

The previous prime is 1868091359213. The next prime is 1868091359237. The reversal of 1868091359217 is 7129531908681.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1868091359217 - 2² = 1868091359213 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1868091359213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3498298159 + ... + 3498298692.

It is an arithmetic number, because the mean of its divisors is an integer number (314846858340).

Almost surely, 2^{1868091359217} is an apocalyptic number.

It is an amenable number.

1868091359217 is a deficient number, since it is larger than the sum of its proper divisors (650683507503).

1868091359217 is an equidigital number, since it uses as much as digits as its factorization.

1868091359217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6996596943.

The product of its (nonzero) digits is 6531840, while the sum is 60.

The spelling of 1868091359217 in words is "one trillion, eight hundred sixty-eight billion, ninety-one million, three hundred fifty-nine thousand, two hundred seventeen".