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12648612071 is a prime number
BaseRepresentation
bin10111100011110101…
…01000000011100111
31012122111121001211202
423301322220003213
5201401021041241
65451035353115
7625305300014
oct136172500347
935574531752
1012648612071
1154008a2507
12254bbb279b
131267650b54
1487dc1a70b
154e0691d9b
hex2f1ea80e7

12648612071 has 2 divisors, whose sum is σ = 12648612072. Its totient is φ = 12648612070.

The previous prime is 12648612059. The next prime is 12648612089. The reversal of 12648612071 is 17021684621.

It is a weak prime.

It is an emirp because it is prime and its reverse (17021684621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12648612071 - 218 = 12648349927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12648612001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6324306035 + 6324306036.

It is an arithmetic number, because the mean of its divisors is an integer number (6324306036).

Almost surely, 212648612071 is an apocalyptic number.

12648612071 is a deficient number, since it is larger than the sum of its proper divisors (1).

12648612071 is an equidigital number, since it uses as much as digits as its factorization.

12648612071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 38.

The spelling of 12648612071 in words is "twelve billion, six hundred forty-eight million, six hundred twelve thousand, seventy-one".