5509439063971 has 2 divisors, whose sum is σ = 5509439063972. Its totient is φ = 5509439063970.

The previous prime is 5509439063899. The next prime is 5509439064011. The reversal of 5509439063971 is 1793609349055.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5509439063971 is a prime.

It is not a weakly prime, because it can be changed into another prime (5509439063671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2754719531985 + 2754719531986.

It is an arithmetic number, because the mean of its divisors is an integer number (2754719531986).

Almost surely, 2^{5509439063971} is an apocalyptic number.

5509439063971 is a deficient number, since it is larger than the sum of its proper divisors (1).

5509439063971 is an equidigital number, since it uses as much as digits as its factorization.

5509439063971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27556200, while the sum is 61.

The spelling of 5509439063971 in words is "five trillion, five hundred nine billion, four hundred thirty-nine million, sixty-three thousand, nine hundred seventy-one".