80441441779 has 2 divisors, whose sum is σ = 80441441780. Its totient is φ = 80441441778.

The previous prime is 80441441741. The next prime is 80441441791. The reversal of 80441441779 is 97714414408.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80441441779 - 2²⁵ = 80407887347 is a prime.

It is not a weakly prime, because it can be changed into another prime (80441441579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40220720889 + 40220720890.

It is an arithmetic number, because the mean of its divisors is an integer number (40220720890).

Almost surely, 2^80441441779 is an apocalyptic number.

80441441779 is a deficient number, since it is larger than the sum of its proper divisors (1).

80441441779 is an equidigital number, since it uses as much as digits as its factorization.

80441441779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 80441441779 in words is "eighty billion, four hundred forty-one million, four hundred forty-one thousand, seven hundred seventy-nine".