214647387717 has 24 divisors (see below), whose sum is σ = 332940545856. Its totient is φ = 122648994048.

The previous prime is 214647387709. The next prime is 214647387719. The reversal of 214647387717 is 717783746412.

It is not a de Polignac number, because 214647387717 - 2³ = 214647387709 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214647387719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4260448 + ... + 4310534.

It is an arithmetic number, because the mean of its divisors is an integer number (13872522744).

Almost surely, 2^214647387717 is an apocalyptic number.

It is an amenable number.

214647387717 is a deficient number, since it is larger than the sum of its proper divisors (118293158139).

214647387717 is a wasteful number, since it uses less digits than its factorization.

214647387717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79257 (or 79250 counting only the distinct ones).

The product of its digits is 11063808, while the sum is 57.

The spelling of 214647387717 in words is "two hundred fourteen billion, six hundred forty-seven million, three hundred eighty-seven thousand, seven hundred seventeen".