346274645399 has 2 divisors, whose sum is σ = 346274645400. Its totient is φ = 346274645398.

The previous prime is 346274645341. The next prime is 346274645477. The reversal of 346274645399 is 993546472643.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 346274645399 - 2¹⁶ = 346274579863 is a prime.

It is a super-2 number, since 2×346274645399² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346274645309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173137322699 + 173137322700.

It is an arithmetic number, because the mean of its divisors is an integer number (173137322700).

Almost surely, 2^346274645399 is an apocalyptic number.

346274645399 is a deficient number, since it is larger than the sum of its proper divisors (1).

346274645399 is an equidigital number, since it uses as much as digits as its factorization.

346274645399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 117573120, while the sum is 62.

The spelling of 346274645399 in words is "three hundred forty-six billion, two hundred seventy-four million, six hundred forty-five thousand, three hundred ninety-nine".