344331621137474 has 4 divisors (see below), whose sum is σ = 516497431706214. Its totient is φ = 172165810568736.

The previous prime is 344331621137473. The next prime is 344331621137521. The reversal of 344331621137474 is 474731126133443.

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

It can be written as a sum of positive squares in only one way, i.e., 339091711000249 + 5239910137225 = 18414443^2 + 2289085^2 .

It is not an unprimeable number, because it can be changed into a prime (344331621137473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86082905284367 + ... + 86082905284370.

Almost surely, 2^{344331621137474} is an apocalyptic number.

344331621137474 is a deficient number, since it is larger than the sum of its proper divisors (172165810568740).

344331621137474 is a wasteful number, since it uses less digits than its factorization.

344331621137474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172165810568739.

The product of its digits is 12192768, while the sum is 53.

The spelling of 344331621137474 in words is "three hundred forty-four trillion, three hundred thirty-one billion, six hundred twenty-one million, one hundred thirty-seven thousand, four hundred seventy-four".