77799342319 has 2 divisors, whose sum is σ = 77799342320. Its totient is φ = 77799342318.

The previous prime is 77799342223. The next prime is 77799342329. The reversal of 77799342319 is 91324399777.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77799342319 - 2¹⁵ = 77799309551 is a prime.

It is a super-2 number, since 2×77799342319² (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 (77799342329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38899671159 + 38899671160.

It is an arithmetic number, because the mean of its divisors is an integer number (38899671160).

Almost surely, 2^77799342319 is an apocalyptic number.

77799342319 is a deficient number, since it is larger than the sum of its proper divisors (1).

77799342319 is an equidigital number, since it uses as much as digits as its factorization.

77799342319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18003384, while the sum is 61.

The spelling of 77799342319 in words is "seventy-seven billion, seven hundred ninety-nine million, three hundred forty-two thousand, three hundred nineteen".