344137965553 has 2 divisors, whose sum is σ = 344137965554. Its totient is φ = 344137965552.

The previous prime is 344137965547. The next prime is 344137965569. The reversal of 344137965553 is 355569731443.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219167231409 + 124970734144 = 468153^2 + 353512^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344137965553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 344137965494 and 344137965503.

It is not a weakly prime, because it can be changed into another prime (344137963553) 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 as a sum of consecutive naturals, namely, 172068982776 + 172068982777.

It is an arithmetic number, because the mean of its divisors is an integer number (172068982777).

Almost surely, 2^344137965553 is an apocalyptic number.

It is an amenable number.

344137965553 is a deficient number, since it is larger than the sum of its proper divisors (1).

344137965553 is an equidigital number, since it uses as much as digits as its factorization.

344137965553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412000, while the sum is 55.

The spelling of 344137965553 in words is "three hundred forty-four billion, one hundred thirty-seven million, nine hundred sixty-five thousand, five hundred fifty-three".