343621584389 has 2 divisors, whose sum is σ = 343621584390. Its totient is φ = 343621584388.

The previous prime is 343621584359. The next prime is 343621584407. The reversal of 343621584389 is 983485126343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253356189025 + 90265395364 = 503345^2 + 300442^2 .

It is a cyclic number.

It is not a de Polignac number, because 343621584389 - 2²⁸ = 343353148933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343621584329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171810792194 + 171810792195.

It is an arithmetic number, because the mean of its divisors is an integer number (171810792195).

Almost surely, 2^343621584389 is an apocalyptic number.

It is an amenable number.

343621584389 is a deficient number, since it is larger than the sum of its proper divisors (1).

343621584389 is an equidigital number, since it uses as much as digits as its factorization.

343621584389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14929920, while the sum is 56.

The spelling of 343621584389 in words is "three hundred forty-three billion, six hundred twenty-one million, five hundred eighty-four thousand, three hundred eighty-nine".