80956829194191 has 12 divisors (see below), whose sum is σ = 118854652697560. Its totient is φ = 53086445372880.

The previous prime is 80956829194151. The next prime is 80956829194223. The reversal of 80956829194191 is 19149192865908.

It is a happy number.

80956829194191 is a `hidden beast` number, since 8 + 0 + 9 + 5 + 68 + 291 + 94 + 191 = 666.

It is not a de Polignac number, because 80956829194191 - 2¹⁵ = 80956829161423 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 (80956829194141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73731173581 + ... + 73731174678.

Almost surely, 2^{80956829194191} is an apocalyptic number.

80956829194191 is a deficient number, since it is larger than the sum of its proper divisors (37897823503369).

80956829194191 is a wasteful number, since it uses less digits than its factorization.

80956829194191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147462348326 (or 147462348323 counting only the distinct ones).

The product of its (nonzero) digits is 100776960, while the sum is 72.

The spelling of 80956829194191 in words is "eighty trillion, nine hundred fifty-six billion, eight hundred twenty-nine million, one hundred ninety-four thousand, one hundred ninety-one".