343965975401 has 2 divisors, whose sum is σ = 343965975402. Its totient is φ = 343965975400.

The previous prime is 343965975377. The next prime is 343965975427. The reversal of 343965975401 is 104579569343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 324860101225 + 19105874176 = 569965^2 + 138224^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343965975401 is a prime.

It is a super-2 number, since 2×343965975401² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (343965975491) 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, 171982987700 + 171982987701.

It is an arithmetic number, because the mean of its divisors is an integer number (171982987701).

Almost surely, 2^343965975401 is an apocalyptic number.

It is an amenable number.

343965975401 is a deficient number, since it is larger than the sum of its proper divisors (1).

343965975401 is an equidigital number, since it uses as much as digits as its factorization.

343965975401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12247200, while the sum is 56.

The spelling of 343965975401 in words is "three hundred forty-three billion, nine hundred sixty-five million, nine hundred seventy-five thousand, four hundred one".