78603680317079 has 2 divisors, whose sum is σ = 78603680317080. Its totient is φ = 78603680317078.

The previous prime is 78603680317039. The next prime is 78603680317103. The reversal of 78603680317079 is 97071308630687.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78603680317079 - 2⁸ = 78603680316823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78603680317009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39301840158539 + 39301840158540.

It is an arithmetic number, because the mean of its divisors is an integer number (39301840158540).

Almost surely, 2^{78603680317079} is an apocalyptic number.

78603680317079 is a deficient number, since it is larger than the sum of its proper divisors (1).

78603680317079 is an equidigital number, since it uses as much as digits as its factorization.

78603680317079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64012032, while the sum is 65.

The spelling of 78603680317079 in words is "seventy-eight trillion, six hundred three billion, six hundred eighty million, three hundred seventeen thousand, seventy-nine".