7227216272791 has 2 divisors, whose sum is σ = 7227216272792. Its totient is φ = 7227216272790.

The previous prime is 7227216272761. The next prime is 7227216272807. The reversal of 7227216272791 is 1972726127227.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7227216272791 - 2³¹ = 7225068789143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7227216272761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3613608136395 + 3613608136396.

It is an arithmetic number, because the mean of its divisors is an integer number (3613608136396).

Almost surely, 2^{7227216272791} is an apocalyptic number.

7227216272791 is a deficient number, since it is larger than the sum of its proper divisors (1).

7227216272791 is an equidigital number, since it uses as much as digits as its factorization.

7227216272791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4148928, while the sum is 55.

The spelling of 7227216272791 in words is "seven trillion, two hundred twenty-seven billion, two hundred sixteen million, two hundred seventy-two thousand, seven hundred ninety-one".