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12873438419 is a prime number
BaseRepresentation
bin10111111110101000…
…10001010011010011
31020020011122102121112
423333110101103103
5202331100012134
65525230243535
7634005264302
oct137724212323
936204572545
1012873438419
1155067a1906
1225b33565ab
1312a20bb2aa
148a1a22439
155052a21ce
hex2ff5114d3

12873438419 has 2 divisors, whose sum is σ = 12873438420. Its totient is φ = 12873438418.

The previous prime is 12873438373. The next prime is 12873438421. The reversal of 12873438419 is 91483437821.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12873438419 is a prime.

It is a super-2 number, since 2×128734384192 (a number of 21 digits) contains 22 as substring.

Together with 12873438421, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12873438449) 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 as a sum of consecutive naturals, namely, 6436719209 + 6436719210.

It is an arithmetic number, because the mean of its divisors is an integer number (6436719210).

Almost surely, 212873438419 is an apocalyptic number.

12873438419 is a deficient number, since it is larger than the sum of its proper divisors (1).

12873438419 is an equidigital number, since it uses as much as digits as its factorization.

12873438419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 50.

The spelling of 12873438419 in words is "twelve billion, eight hundred seventy-three million, four hundred thirty-eight thousand, four hundred nineteen".