1643298524041 has 2 divisors, whose sum is σ = 1643298524042. Its totient is φ = 1643298524040.

The previous prime is 1643298524033. The next prime is 1643298524047. The reversal of 1643298524041 is 1404258923461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1019362833225 + 623935690816 = 1009635^2 + 789896^2 .

It is a cyclic number.

It is not a de Polignac number, because 1643298524041 - 2³ = 1643298524033 is a prime.

It is not a weakly prime, because it can be changed into another prime (1643298524047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 821649262020 + 821649262021.

It is an arithmetic number, because the mean of its divisors is an integer number (821649262021).

Almost surely, 2^{1643298524041} is an apocalyptic number.

It is an amenable number.

1643298524041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1643298524041 is an equidigital number, since it uses as much as digits as its factorization.

1643298524041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 1643298524041 in words is "one trillion, six hundred forty-three billion, two hundred ninety-eight million, five hundred twenty-four thousand, forty-one".