214745194717 has 4 divisors (see below), whose sum is σ = 218384943840. Its totient is φ = 211105445596.

The previous prime is 214745194693. The next prime is 214745194753. The reversal of 214745194717 is 717491547412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214745194717 is a prime.

It is a super-2 number, since 2×214745194717² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214745294717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1819874473 + ... + 1819874590.

It is an arithmetic number, because the mean of its divisors is an integer number (54596235960).

Almost surely, 2^214745194717 is an apocalyptic number.

It is an amenable number.

214745194717 is a deficient number, since it is larger than the sum of its proper divisors (3639749123).

214745194717 is an equidigital number, since it uses as much as digits as its factorization.

214745194717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3639749122.

The product of its digits is 1975680, while the sum is 52.

The spelling of 214745194717 in words is "two hundred fourteen billion, seven hundred forty-five million, one hundred ninety-four thousand, seven hundred seventeen".