77308502365379 has 2 divisors, whose sum is σ = 77308502365380. Its totient is φ = 77308502365378.

The previous prime is 77308502365351. The next prime is 77308502365421. The reversal of 77308502365379 is 97356320580377.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77308502365379 is a prime.

It is not a weakly prime, because it can be changed into another prime (77308502365309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38654251182689 + 38654251182690.

It is an arithmetic number, because the mean of its divisors is an integer number (38654251182690).

Almost surely, 2^{77308502365379} is an apocalyptic number.

77308502365379 is a deficient number, since it is larger than the sum of its proper divisors (1).

77308502365379 is an equidigital number, since it uses as much as digits as its factorization.

77308502365379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 200037600, while the sum is 65.

The spelling of 77308502365379 in words is "seventy-seven trillion, three hundred eight billion, five hundred two million, three hundred sixty-five thousand, three hundred seventy-nine".