353645131643 has 2 divisors, whose sum is σ = 353645131644. Its totient is φ = 353645131642.

The previous prime is 353645131627. The next prime is 353645131657. The reversal of 353645131643 is 346131546353.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 353645131643 - 2⁴ = 353645131627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 353645131594 and 353645131603.

It is not a weakly prime, because it can be changed into another prime (353645131613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176822565821 + 176822565822.

It is an arithmetic number, because the mean of its divisors is an integer number (176822565822).

Almost surely, 2^353645131643 is an apocalyptic number.

353645131643 is a deficient number, since it is larger than the sum of its proper divisors (1).

353645131643 is an equidigital number, since it uses as much as digits as its factorization.

353645131643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1166400, while the sum is 44.

Adding to 353645131643 its reverse (346131546353), we get a palindrome (699776677996).

The spelling of 353645131643 in words is "three hundred fifty-three billion, six hundred forty-five million, one hundred thirty-one thousand, six hundred forty-three".