344642035399 has 2 divisors, whose sum is σ = 344642035400. Its totient is φ = 344642035398.

The previous prime is 344642035391. The next prime is 344642035447. The reversal of 344642035399 is 993530246443.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 344642035399 - 2³ = 344642035391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344642035391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172321017699 + 172321017700.

It is an arithmetic number, because the mean of its divisors is an integer number (172321017700).

Almost surely, 2^344642035399 is an apocalyptic number.

344642035399 is a deficient number, since it is larger than the sum of its proper divisors (1).

344642035399 is an equidigital number, since it uses as much as digits as its factorization.

344642035399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8398080, while the sum is 52.

The spelling of 344642035399 in words is "three hundred forty-four billion, six hundred forty-two million, thirty-five thousand, three hundred ninety-nine".