82317447620719 has 2 divisors, whose sum is σ = 82317447620720. Its totient is φ = 82317447620718.

The previous prime is 82317447620693. The next prime is 82317447620729. The reversal of 82317447620719 is 91702674471328.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82317447620719 - 2¹¹ = 82317447618671 is a prime.

It is a super-2 number, since 2×82317447620719² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82317447620729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41158723810359 + 41158723810360.

It is an arithmetic number, because the mean of its divisors is an integer number (41158723810360).

Almost surely, 2^{82317447620719} is an apocalyptic number.

82317447620719 is a deficient number, since it is larger than the sum of its proper divisors (1).

82317447620719 is an equidigital number, since it uses as much as digits as its factorization.

82317447620719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28449792, while the sum is 61.

The spelling of 82317447620719 in words is "eighty-two trillion, three hundred seventeen billion, four hundred forty-seven million, six hundred twenty thousand, seven hundred nineteen".