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80091164687 is a prime number
BaseRepresentation
bin100101010010111001…
…1100011000000001111
321122201200122201102212
41022211303203000033
52303011314232222
6100443211341035
75533506444602
oct1124563430017
9248650581385
1080091164687
1130a6a4134a6
121363245177b
137724ca3c11
143c3ad0a339
15213b4ca6e2
hex12a5ce300f

80091164687 has 2 divisors, whose sum is σ = 80091164688. Its totient is φ = 80091164686.

The previous prime is 80091164641. The next prime is 80091164689. The reversal of 80091164687 is 78646119008.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80091164687 is a prime.

Together with 80091164689, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80091164689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40045582343 + 40045582344.

It is an arithmetic number, because the mean of its divisors is an integer number (40045582344).

Almost surely, 280091164687 is an apocalyptic number.

80091164687 is a deficient number, since it is larger than the sum of its proper divisors (1).

80091164687 is an equidigital number, since it uses as much as digits as its factorization.

80091164687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 50.

The spelling of 80091164687 in words is "eighty billion, ninety-one million, one hundred sixty-four thousand, six hundred eighty-seven".