344339312869 has 4 divisors (see below), whose sum is σ = 344442752460. Its totient is φ = 344235873280.

The previous prime is 344339312809. The next prime is 344339312881. The reversal of 344339312869 is 968213933443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 968213933443 = 326087 ⋅2969189.

It can be written as a sum of positive squares in 2 ways, for example, as 131576680225 + 212762632644 = 362735^2 + 461262^2 .

It is a cyclic number.

It is not a de Polignac number, because 344339312869 - 2²⁵ = 344305758437 is a prime.

It is a super-2 number, since 2×344339312869² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344339312809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51714802 + ... + 51721459.

It is an arithmetic number, because the mean of its divisors is an integer number (86110688115).

Almost surely, 2^344339312869 is an apocalyptic number.

It is an amenable number.

344339312869 is a deficient number, since it is larger than the sum of its proper divisors (103439591).

344339312869 is a wasteful number, since it uses less digits than its factorization.

344339312869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103439590.

The product of its digits is 10077696, while the sum is 55.

The spelling of 344339312869 in words is "three hundred forty-four billion, three hundred thirty-nine million, three hundred twelve thousand, eight hundred sixty-nine".