3243237920047 has 2 divisors, whose sum is σ = 3243237920048. Its totient is φ = 3243237920046.

The previous prime is 3243237919979. The next prime is 3243237920071. The reversal of 3243237920047 is 7400297323423.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3243237920047 - 2¹¹ = 3243237917999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3243237919979 and 3243237920006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3243237920647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1621618960023 + 1621618960024.

It is an arithmetic number, because the mean of its divisors is an integer number (1621618960024).

Almost surely, 2^{3243237920047} is an apocalyptic number.

3243237920047 is a deficient number, since it is larger than the sum of its proper divisors (1).

3243237920047 is an equidigital number, since it uses as much as digits as its factorization.

3243237920047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 46.

The spelling of 3243237920047 in words is "three trillion, two hundred forty-three billion, two hundred thirty-seven million, nine hundred twenty thousand, forty-seven".