217103461568 has 28 divisors (see below), whose sum is σ = 492359637072. Its totient is φ = 93044340480.

The previous prime is 217103461517. The next prime is 217103461609. The reversal of 217103461568 is 865164301712.

217103461568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242302523 + ... + 242303418.

Almost surely, 2^217103461568 is an apocalyptic number.

217103461568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

217103461568 is an abundant number, since it is smaller than the sum of its proper divisors (275256175504).

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

217103461568 is an equidigital number, since it uses as much as digits as its factorization.

217103461568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484605960 (or 484605950 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 217103461568 in words is "two hundred seventeen billion, one hundred three million, four hundred sixty-one thousand, five hundred sixty-eight".