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14971237819 is a prime number
BaseRepresentation
bin11011111000101101…
…01111010110111011
31102122101000200101121
431330112233112323
5221130114102234
610513325330111
71040000264446
oct157426572673
942571020347
1014971237819
11639296761a
122a99a06937
1315478b8605
14a2049865d
155c95324b4
hex37c5af5bb

14971237819 has 2 divisors, whose sum is σ = 14971237820. Its totient is φ = 14971237818.

The previous prime is 14971237817. The next prime is 14971237843. The reversal of 14971237819 is 91873217941.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 14971237819 - 21 = 14971237817 is a prime.

It is a super-2 number, since 2×149712378192 (a number of 21 digits) contains 22 as substring.

Together with 14971237817, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (14971237817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7485618909 + 7485618910.

It is an arithmetic number, because the mean of its divisors is an integer number (7485618910).

Almost surely, 214971237819 is an apocalyptic number.

14971237819 is a deficient number, since it is larger than the sum of its proper divisors (1).

14971237819 is an equidigital number, since it uses as much as digits as its factorization.

14971237819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 52.

The spelling of 14971237819 in words is "fourteen billion, nine hundred seventy-one million, two hundred thirty-seven thousand, eight hundred nineteen".