80364195191 has 4 divisors (see below), whose sum is σ = 91844794512. Its totient is φ = 68883595872.

The previous prime is 80364195187. The next prime is 80364195199. The reversal of 80364195191 is 19159146308.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 80364195191 - 2² = 80364195187 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80364195199) 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 in 3 ways as a sum of consecutive naturals, for example, 5740299650 + ... + 5740299663.

It is an arithmetic number, because the mean of its divisors is an integer number (22961198628).

Almost surely, 2^80364195191 is an apocalyptic number.

80364195191 is a deficient number, since it is larger than the sum of its proper divisors (11480599321).

80364195191 is a wasteful number, since it uses less digits than its factorization.

80364195191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11480599320.

The product of its (nonzero) digits is 233280, while the sum is 47.

The spelling of 80364195191 in words is "eighty billion, three hundred sixty-four million, one hundred ninety-five thousand, one hundred ninety-one".