7271367133991 has 2 divisors, whose sum is σ = 7271367133992. Its totient is φ = 7271367133990.

The previous prime is 7271367133913. The next prime is 7271367133993. The reversal of 7271367133991 is 1993317631727.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7271367133991 is a prime.

Together with 7271367133993, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7271367133991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7271367133993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3635683566995 + 3635683566996.

It is an arithmetic number, because the mean of its divisors is an integer number (3635683566996).

Almost surely, 2^{7271367133991} is an apocalyptic number.

7271367133991 is a deficient number, since it is larger than the sum of its proper divisors (1).

7271367133991 is an equidigital number, since it uses as much as digits as its factorization.

7271367133991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9001692, while the sum is 59.

The spelling of 7271367133991 in words is "seven trillion, two hundred seventy-one billion, three hundred sixty-seven million, one hundred thirty-three thousand, nine hundred ninety-one".