80118617879 has 2 divisors, whose sum is σ = 80118617880. Its totient is φ = 80118617878.

The previous prime is 80118617867. The next prime is 80118617903. The reversal of 80118617879 is 97871681108.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80118617879 - 2⁴ = 80118617863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80118617179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40059308939 + 40059308940.

It is an arithmetic number, because the mean of its divisors is an integer number (40059308940).

Almost surely, 2^80118617879 is an apocalyptic number.

80118617879 is a deficient number, since it is larger than the sum of its proper divisors (1).

80118617879 is an equidigital number, since it uses as much as digits as its factorization.

80118617879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 56.

The spelling of 80118617879 in words is "eighty billion, one hundred eighteen million, six hundred seventeen thousand, eight hundred seventy-nine".