80444460199 has 2 divisors, whose sum is σ = 80444460200. Its totient is φ = 80444460198.

The previous prime is 80444460191. The next prime is 80444460209. The reversal of 80444460199 is 99106444408.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80444460199 - 2³ = 80444460191 is a prime.

It is a super-2 number, since 2×80444460199² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80444460191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40222230099 + 40222230100.

It is an arithmetic number, because the mean of its divisors is an integer number (40222230100).

Almost surely, 2^80444460199 is an apocalyptic number.

80444460199 is a deficient number, since it is larger than the sum of its proper divisors (1).

80444460199 is an equidigital number, since it uses as much as digits as its factorization.

80444460199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 995328, while the sum is 49.

The spelling of 80444460199 in words is "eighty billion, four hundred forty-four million, four hundred sixty thousand, one hundred ninety-nine".