347143744221 has 4 divisors (see below), whose sum is σ = 462858325632. Its totient is φ = 231429162812.

The previous prime is 347143744193. The next prime is 347143744223. The reversal of 347143744221 is 122447341743.

It is a happy number.

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 not a de Polignac number, because 347143744221 - 2⁷ = 347143744093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347143744223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57857290701 + ... + 57857290706.

It is an arithmetic number, because the mean of its divisors is an integer number (115714581408).

Almost surely, 2^347143744221 is an apocalyptic number.

It is an amenable number.

347143744221 is a deficient number, since it is larger than the sum of its proper divisors (115714581411).

347143744221 is a wasteful number, since it uses less digits than its factorization.

347143744221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115714581410.

The product of its digits is 451584, while the sum is 42.

The spelling of 347143744221 in words is "three hundred forty-seven billion, one hundred forty-three million, seven hundred forty-four thousand, two hundred twenty-one".