80438218199 has 2 divisors, whose sum is σ = 80438218200. Its totient is φ = 80438218198.

The previous prime is 80438218193. The next prime is 80438218271. The reversal of 80438218199 is 99181283408.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80438218199 - 2²⁰ = 80437169623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80438218199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80438218193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40219109099 + 40219109100.

It is an arithmetic number, because the mean of its divisors is an integer number (40219109100).

Almost surely, 2^80438218199 is an apocalyptic number.

80438218199 is a deficient number, since it is larger than the sum of its proper divisors (1).

80438218199 is an equidigital number, since it uses as much as digits as its factorization.

80438218199 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 53.

The spelling of 80438218199 in words is "eighty billion, four hundred thirty-eight million, two hundred eighteen thousand, one hundred ninety-nine".