78608924099 has 2 divisors, whose sum is σ = 78608924100. Its totient is φ = 78608924098.

The previous prime is 78608924047. The next prime is 78608924111. The reversal of 78608924099 is 99042980687.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78608924099 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (78608924039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39304462049 + 39304462050.

It is an arithmetic number, because the mean of its divisors is an integer number (39304462050).

Almost surely, 2^78608924099 is an apocalyptic number.

78608924099 is a deficient number, since it is larger than the sum of its proper divisors (1).

78608924099 is an equidigital number, since it uses as much as digits as its factorization.

78608924099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15676416, while the sum is 62.

The spelling of 78608924099 in words is "seventy-eight billion, six hundred eight million, nine hundred twenty-four thousand, ninety-nine".