78792830609 has 2 divisors, whose sum is σ = 78792830610. Its totient is φ = 78792830608.

The previous prime is 78792830573. The next prime is 78792830621. The reversal of 78792830609 is 90603829787.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71983280209 + 6809550400 = 268297^2 + 82520^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78792830609 is a prime.

It is not a weakly prime, because it can be changed into another prime (78792830629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39396415304 + 39396415305.

It is an arithmetic number, because the mean of its divisors is an integer number (39396415305).

Almost surely, 2^78792830609 is an apocalyptic number.

It is an amenable number.

78792830609 is a deficient number, since it is larger than the sum of its proper divisors (1).

78792830609 is an equidigital number, since it uses as much as digits as its factorization.

78792830609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9144576, while the sum is 59.

The spelling of 78792830609 in words is "seventy-eight billion, seven hundred ninety-two million, eight hundred thirty thousand, six hundred nine".