343626208417 has 2 divisors, whose sum is σ = 343626208418. Its totient is φ = 343626208416.

The previous prime is 343626208351. The next prime is 343626208421. The reversal of 343626208417 is 714802626343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 343479217041 + 146991376 = 586071^2 + 12124^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343626208417 is a prime.

It is a super-2 number, since 2×343626208417² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (343626208217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171813104208 + 171813104209.

It is an arithmetic number, because the mean of its divisors is an integer number (171813104209).

Almost surely, 2^343626208417 is an apocalyptic number.

It is an amenable number.

343626208417 is a deficient number, since it is larger than the sum of its proper divisors (1).

343626208417 is an equidigital number, since it uses as much as digits as its factorization.

343626208417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 46.

The spelling of 343626208417 in words is "three hundred forty-three billion, six hundred twenty-six million, two hundred eight thousand, four hundred seventeen".