344245521313 has 4 divisors (see below), whose sum is σ = 344247360660. Its totient is φ = 344243681968.

The previous prime is 344245521311. The next prime is 344245521337. The reversal of 344245521313 is 313125542443.

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 112911456529 + 231334064784 = 336023^2 + 480972^2 .

It is a cyclic number.

It is not a de Polignac number, because 344245521313 - 2¹ = 344245521311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344245521311) 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, 602470 + ... + 1025407.

It is an arithmetic number, because the mean of its divisors is an integer number (86061840165).

Almost surely, 2^344245521313 is an apocalyptic number.

It is an amenable number.

344245521313 is a deficient number, since it is larger than the sum of its proper divisors (1839347).

344245521313 is a wasteful number, since it uses less digits than its factorization.

344245521313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839346.

The product of its digits is 172800, while the sum is 37.

The spelling of 344245521313 in words is "three hundred forty-four billion, two hundred forty-five million, five hundred twenty-one thousand, three hundred thirteen".