343422400331999 has 4 divisors (see below), whose sum is σ = 344167351309320. Its totient is φ = 342677449354680.

The previous prime is 343422400331963. The next prime is 343422400332031. The reversal of 343422400331999 is 999133004224343.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343422400331999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343422400331599) 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, 372475487969 + ... + 372475488890.

It is an arithmetic number, because the mean of its divisors is an integer number (86041837827330).

Almost surely, 2^{343422400331999} is an apocalyptic number.

343422400331999 is a deficient number, since it is larger than the sum of its proper divisors (744950977321).

343422400331999 is an equidigital number, since it uses as much as digits as its factorization.

343422400331999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744950977320.

The product of its (nonzero) digits is 15116544, while the sum is 56.

The spelling of 343422400331999 in words is "three hundred forty-three trillion, four hundred twenty-two billion, four hundred million, three hundred thirty-one thousand, nine hundred ninety-nine".