343251421943377 has 2 divisors, whose sum is σ = 343251421943378. Its totient is φ = 343251421943376.

The previous prime is 343251421943359. The next prime is 343251421943401. The reversal of 343251421943377 is 773349124152343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 329815964218896 + 13435457724481 = 18160836^2 + 3665441^2 .

It is a cyclic number.

It is not a de Polignac number, because 343251421943377 - 2¹⁵ = 343251421910609 is a prime.

It is not a weakly prime, because it can be changed into another prime (343251421943357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171625710971688 + 171625710971689.

It is an arithmetic number, because the mean of its divisors is an integer number (171625710971689).

Almost surely, 2^{343251421943377} is an apocalyptic number.

It is an amenable number.

343251421943377 is a deficient number, since it is larger than the sum of its proper divisors (1).

343251421943377 is an equidigital number, since it uses as much as digits as its factorization.

343251421943377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45722880, while the sum is 58.

The spelling of 343251421943377 in words is "three hundred forty-three trillion, two hundred fifty-one billion, four hundred twenty-one million, nine hundred forty-three thousand, three hundred seventy-seven".