343965975377 has 2 divisors, whose sum is σ = 343965975378. Its totient is φ = 343965975376.

The previous prime is 343965975349. The next prime is 343965975401. The reversal of 343965975377 is 773579569343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184426443601 + 159539531776 = 429449^2 + 399424^2 .

It is a cyclic number.

It is not a de Polignac number, because 343965975377 - 2¹² = 343965971281 is a prime.

It is not a weakly prime, because it can be changed into another prime (343965975317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171982987688 + 171982987689.

It is an arithmetic number, because the mean of its divisors is an integer number (171982987689).

Almost surely, 2^343965975377 is an apocalyptic number.

It is an amenable number.

343965975377 is a deficient number, since it is larger than the sum of its proper divisors (1).

343965975377 is an equidigital number, since it uses as much as digits as its factorization.

343965975377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 450084600, while the sum is 68.

The spelling of 343965975377 in words is "three hundred forty-three billion, nine hundred sixty-five million, nine hundred seventy-five thousand, three hundred seventy-seven".