344431120085867 has 2 divisors, whose sum is σ = 344431120085868. Its totient is φ = 344431120085866.

The previous prime is 344431120085837. The next prime is 344431120085869. The reversal of 344431120085867 is 768580021134443.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 344431120085867 - 2¹² = 344431120081771 is a prime.

Together with 344431120085869, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (344431120085869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172215560042933 + 172215560042934.

It is an arithmetic number, because the mean of its divisors is an integer number (172215560042934).

Almost surely, 2^{344431120085867} is an apocalyptic number.

344431120085867 is a deficient number, since it is larger than the sum of its proper divisors (1).

344431120085867 is an equidigital number, since it uses as much as digits as its factorization.

344431120085867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15482880, while the sum is 56.

The spelling of 344431120085867 in words is "three hundred forty-four trillion, four hundred thirty-one billion, one hundred twenty million, eighty-five thousand, eight hundred sixty-seven".