344893220647 has 2 divisors, whose sum is σ = 344893220648. Its totient is φ = 344893220646.

The previous prime is 344893220599. The next prime is 344893220669. The reversal of 344893220647 is 746022398443.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 344893220647 - 2¹¹ = 344893218599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 344893220594 and 344893220603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344893229647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172446610323 + 172446610324.

It is an arithmetic number, because the mean of its divisors is an integer number (172446610324).

Almost surely, 2^344893220647 is an apocalyptic number.

344893220647 is a deficient number, since it is larger than the sum of its proper divisors (1).

344893220647 is an equidigital number, since it uses as much as digits as its factorization.

344893220647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6967296, while the sum is 52.

The spelling of 344893220647 in words is "three hundred forty-four billion, eight hundred ninety-three million, two hundred twenty thousand, six hundred forty-seven".