214643847673 has 4 divisors (see below), whose sum is σ = 214724452608. Its totient is φ = 214563242740.

The previous prime is 214643847637. The next prime is 214643847683. The reversal of 214643847673 is 376748346412.

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-214643847673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214643847683) 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, 40298473 + ... + 40303798.

It is an arithmetic number, because the mean of its divisors is an integer number (53681113152).

Almost surely, 2^214643847673 is an apocalyptic number.

It is an amenable number.

214643847673 is a deficient number, since it is larger than the sum of its proper divisors (80604935).

214643847673 is an equidigital number, since it uses as much as digits as its factorization.

214643847673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80604934.

The product of its digits is 16257024, while the sum is 55.

The spelling of 214643847673 in words is "two hundred fourteen billion, six hundred forty-three million, eight hundred forty-seven thousand, six hundred seventy-three".