78923026579 has 2 divisors, whose sum is σ = 78923026580. Its totient is φ = 78923026578.

The previous prime is 78923026543. The next prime is 78923026591. The reversal of 78923026579 is 97562032987.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78923026579 - 2²¹ = 78920929427 is a prime.

It is not a weakly prime, because it can be changed into another prime (78923026529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39461513289 + 39461513290.

It is an arithmetic number, because the mean of its divisors is an integer number (39461513290).

Almost surely, 2^78923026579 is an apocalyptic number.

78923026579 is a deficient number, since it is larger than the sum of its proper divisors (1).

78923026579 is an equidigital number, since it uses as much as digits as its factorization.

78923026579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11430720, while the sum is 58.

The spelling of 78923026579 in words is "seventy-eight billion, nine hundred twenty-three million, twenty-six thousand, five hundred seventy-nine".