342838393769 has 4 divisors (see below), whose sum is σ = 347534810196. Its totient is φ = 338141977344.

The previous prime is 342838393649. The next prime is 342838393787. The reversal of 342838393769 is 967393838243.

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

It can be written as a sum of positive squares in 2 ways, for example, as 262386744169 + 80451649600 = 512237^2 + 283640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342838393769 is a prime.

It is a super-2 number, since 2×342838393769² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (342838393169) 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, 2348208104 + ... + 2348208249.

It is an arithmetic number, because the mean of its divisors is an integer number (86883702549).

Almost surely, 2^342838393769 is an apocalyptic number.

It is an amenable number.

342838393769 is a deficient number, since it is larger than the sum of its proper divisors (4696416427).

342838393769 is an equidigital number, since it uses as much as digits as its factorization.

342838393769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4696416426.

The product of its digits is 141087744, while the sum is 65.

The spelling of 342838393769 in words is "three hundred forty-two billion, eight hundred thirty-eight million, three hundred ninety-three thousand, seven hundred sixty-nine".