214905374209 has 4 divisors (see below), whose sum is σ = 220713627604. Its totient is φ = 209097120816.

The previous prime is 214905374161. The next prime is 214905374219. The reversal of 214905374209 is 902473509412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 196869690000 + 18035684209 = 443700^2 + 134297^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214905374209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214905374219) 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, 2904126642 + ... + 2904126715.

It is an arithmetic number, because the mean of its divisors is an integer number (55178406901).

Almost surely, 2^214905374209 is an apocalyptic number.

It is an amenable number.

214905374209 is a deficient number, since it is larger than the sum of its proper divisors (5808253395).

214905374209 is an equidigital number, since it uses as much as digits as its factorization.

214905374209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5808253394.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 214905374209 in words is "two hundred fourteen billion, nine hundred five million, three hundred seventy-four thousand, two hundred nine".