72218068711 has 2 divisors, whose sum is σ = 72218068712. Its totient is φ = 72218068710.

The previous prime is 72218068697. The next prime is 72218068799. The reversal of 72218068711 is 11786081227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72218068711 - 2²⁵ = 72184514279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72218068211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36109034355 + 36109034356.

It is an arithmetic number, because the mean of its divisors is an integer number (36109034356).

Almost surely, 2^72218068711 is an apocalyptic number.

72218068711 is a deficient number, since it is larger than the sum of its proper divisors (1).

72218068711 is an equidigital number, since it uses as much as digits as its factorization.

72218068711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 43.

The spelling of 72218068711 in words is "seventy-two billion, two hundred eighteen million, sixty-eight thousand, seven hundred eleven".