72704111719 has 2 divisors, whose sum is σ = 72704111720. Its totient is φ = 72704111718.

The previous prime is 72704111717. The next prime is 72704111749. The reversal of 72704111719 is 91711140727.

It is a weak prime.

It is an emirp because it is prime and its reverse (91711140727) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72704111719 - 2¹ = 72704111717 is a prime.

It is a super-2 number, since 2×72704111719² (a number of 23 digits) contains 22 as substring.

Together with 72704111717, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72704111717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36352055859 + 36352055860.

It is an arithmetic number, because the mean of its divisors is an integer number (36352055860).

Almost surely, 2^72704111719 is an apocalyptic number.

72704111719 is a deficient number, since it is larger than the sum of its proper divisors (1).

72704111719 is an equidigital number, since it uses as much as digits as its factorization.

72704111719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24696, while the sum is 40.

The spelling of 72704111719 in words is "seventy-two billion, seven hundred four million, one hundred eleven thousand, seven hundred nineteen".