80726605079 has 2 divisors, whose sum is σ = 80726605080. Its totient is φ = 80726605078.

The previous prime is 80726605049. The next prime is 80726605081. The reversal of 80726605079 is 97050662708.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80726605079 - 2²⁰ = 80725556503 is a prime.

Together with 80726605081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80726605009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40363302539 + 40363302540.

It is an arithmetic number, because the mean of its divisors is an integer number (40363302540).

Almost surely, 2^80726605079 is an apocalyptic number.

80726605079 is a deficient number, since it is larger than the sum of its proper divisors (1).

80726605079 is an equidigital number, since it uses as much as digits as its factorization.

80726605079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The spelling of 80726605079 in words is "eighty billion, seven hundred twenty-six million, six hundred five thousand, seventy-nine".