77964105719 has 2 divisors, whose sum is σ = 77964105720. Its totient is φ = 77964105718.

The previous prime is 77964105707. The next prime is 77964105727. The reversal of 77964105719 is 91750146977.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77964105719 - 2¹² = 77964101623 is a prime.

It is a super-2 number, since 2×77964105719² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77964105019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38982052859 + 38982052860.

It is an arithmetic number, because the mean of its divisors is an integer number (38982052860).

Almost surely, 2^77964105719 is an apocalyptic number.

77964105719 is a deficient number, since it is larger than the sum of its proper divisors (1).

77964105719 is an equidigital number, since it uses as much as digits as its factorization.

77964105719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3333960, while the sum is 56.

The spelling of 77964105719 in words is "seventy-seven billion, nine hundred sixty-four million, one hundred five thousand, seven hundred nineteen".