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87873340319 is a prime number
BaseRepresentation
bin101000111010110101…
…0001100001110011111
322101211001012012110222
41101311222030032133
52414431033342234
6104211330351555
76230404032362
oct1216552141637
9271731165428
1087873340319
11342a3234206
121504472b5bb
13839535b97b
1443786b20d9
1524447ea42e
hex1475a8c39f

87873340319 has 2 divisors, whose sum is σ = 87873340320. Its totient is φ = 87873340318.

The previous prime is 87873340237. The next prime is 87873340339. The reversal of 87873340319 is 91304337878.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87873340319 - 236 = 19153863583 is a prime.

It is a super-2 number, since 2×878733403192 (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 (87873340339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43936670159 + 43936670160.

It is an arithmetic number, because the mean of its divisors is an integer number (43936670160).

Almost surely, 287873340319 is an apocalyptic number.

87873340319 is a deficient number, since it is larger than the sum of its proper divisors (1).

87873340319 is an equidigital number, since it uses as much as digits as its factorization.

87873340319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 53.

The spelling of 87873340319 in words is "eighty-seven billion, eight hundred seventy-three million, three hundred forty thousand, three hundred nineteen".