344731820873773 has 4 divisors (see below), whose sum is σ = 352066540466880. Its totient is φ = 337397101280668.

The previous prime is 344731820873771. The next prime is 344731820873789. The reversal of 344731820873773 is 377378028137443.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 344731820873773 - 2¹ = 344731820873771 is a prime.

It is a super-2 number, since 2×344731820873773² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 344731820873699 and 344731820873708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344731820873771) 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, 3667359796483 + ... + 3667359796576.

It is an arithmetic number, because the mean of its divisors is an integer number (88016635116720).

Almost surely, 2^{344731820873773} is an apocalyptic number.

It is an amenable number.

344731820873773 is a deficient number, since it is larger than the sum of its proper divisors (7334719593107).

344731820873773 is an equidigital number, since it uses as much as digits as its factorization.

344731820873773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7334719593106.

The product of its (nonzero) digits is 398297088, while the sum is 67.

The spelling of 344731820873773 in words is "three hundred forty-four trillion, seven hundred thirty-one billion, eight hundred twenty million, eight hundred seventy-three thousand, seven hundred seventy-three".