344069131621 has 2 divisors, whose sum is σ = 344069131622. Its totient is φ = 344069131620.

The previous prime is 344069131583. The next prime is 344069131631. The reversal of 344069131621 is 126131960443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209608308900 + 134460822721 = 457830^2 + 366689^2 .

It is a cyclic number.

It is not a de Polignac number, because 344069131621 - 2³¹ = 341921647973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344069131631) 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, 172034565810 + 172034565811.

It is an arithmetic number, because the mean of its divisors is an integer number (172034565811).

Almost surely, 2^344069131621 is an apocalyptic number.

It is an amenable number.

344069131621 is a deficient number, since it is larger than the sum of its proper divisors (1).

344069131621 is an equidigital number, since it uses as much as digits as its factorization.

344069131621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 344069131621 in words is "three hundred forty-four billion, sixty-nine million, one hundred thirty-one thousand, six hundred twenty-one".