344855256761 has 2 divisors, whose sum is σ = 344855256762. Its totient is φ = 344855256760.

The previous prime is 344855256737. The next prime is 344855256817. The reversal of 344855256761 is 167652558443.

It is an a-pointer prime, because the next prime (344855256817) can be obtained adding 344855256761 to its sum of digits (56).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179547960361 + 165307296400 = 423731^2 + 406580^2 .

It is an emirp because it is prime and its reverse (167652558443) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344855256761 is a prime.

It is a super-2 number, since 2×344855256761² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 344855256697 and 344855256706.

It is not a weakly prime, because it can be changed into another prime (344855256701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172427628380 + 172427628381.

It is an arithmetic number, because the mean of its divisors is an integer number (172427628381).

Almost surely, 2^344855256761 is an apocalyptic number.

It is an amenable number.

344855256761 is a deficient number, since it is larger than the sum of its proper divisors (1).

344855256761 is an equidigital number, since it uses as much as digits as its factorization.

344855256761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192000, while the sum is 56.

The spelling of 344855256761 in words is "three hundred forty-four billion, eight hundred fifty-five million, two hundred fifty-six thousand, seven hundred sixty-one".