80617502579 has 2 divisors, whose sum is σ = 80617502580. Its totient is φ = 80617502578.

The previous prime is 80617502467. The next prime is 80617502597. The reversal of 80617502579 is 97520571608.

Together with next prime (80617502597) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80617502579 - 2²⁰ = 80616454003 is a prime.

It is not a weakly prime, because it can be changed into another prime (80617592579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40308751289 + 40308751290.

It is an arithmetic number, because the mean of its divisors is an integer number (40308751290).

Almost surely, 2^80617502579 is an apocalyptic number.

80617502579 is a deficient number, since it is larger than the sum of its proper divisors (1).

80617502579 is an equidigital number, since it uses as much as digits as its factorization.

80617502579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1058400, while the sum is 50.

The spelling of 80617502579 in words is "eighty billion, six hundred seventeen million, five hundred two thousand, five hundred seventy-nine".