5134445667991 has 2 divisors, whose sum is σ = 5134445667992. Its totient is φ = 5134445667990.

The previous prime is 5134445667947. The next prime is 5134445668021. The reversal of 5134445667991 is 1997665444315.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5134445667991 - 2⁹ = 5134445667479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5134445667931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2567222833995 + 2567222833996.

It is an arithmetic number, because the mean of its divisors is an integer number (2567222833996).

Almost surely, 2^{5134445667991} is an apocalyptic number.

5134445667991 is a deficient number, since it is larger than the sum of its proper divisors (1).

5134445667991 is an equidigital number, since it uses as much as digits as its factorization.

5134445667991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97977600, while the sum is 64.

The spelling of 5134445667991 in words is "five trillion, one hundred thirty-four billion, four hundred forty-five million, six hundred sixty-seven thousand, nine hundred ninety-one".