80796378679 has 2 divisors, whose sum is σ = 80796378680. Its totient is φ = 80796378678.

The previous prime is 80796378671. The next prime is 80796378727. The reversal of 80796378679 is 97687369708.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80796378679 - 2³ = 80796378671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80796378671) 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, 40398189339 + 40398189340.

It is an arithmetic number, because the mean of its divisors is an integer number (40398189340).

Almost surely, 2^80796378679 is an apocalyptic number.

80796378679 is a deficient number, since it is larger than the sum of its proper divisors (1).

80796378679 is an equidigital number, since it uses as much as digits as its factorization.

80796378679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192036096, while the sum is 70.

The spelling of 80796378679 in words is "eighty billion, seven hundred ninety-six million, three hundred seventy-eight thousand, six hundred seventy-nine".