214429977217 has 4 divisors (see below), whose sum is σ = 216511821760. Its totient is φ = 212348132676.

The previous prime is 214429977191. The next prime is 214429977239. The reversal of 214429977217 is 712779924412.

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-214429977217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214420977217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1040922117 + ... + 1040922322.

It is an arithmetic number, because the mean of its divisors is an integer number (54127955440).

Almost surely, 2^214429977217 is an apocalyptic number.

It is an amenable number.

214429977217 is a deficient number, since it is larger than the sum of its proper divisors (2081844543).

214429977217 is a wasteful number, since it uses less digits than its factorization.

214429977217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081844542.

The product of its digits is 3556224, while the sum is 55.

The spelling of 214429977217 in words is "two hundred fourteen billion, four hundred twenty-nine million, nine hundred seventy-seven thousand, two hundred seventeen".