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12512568863 is a prime number
BaseRepresentation
bin10111010011100111…
…01010011000011111
31012022000121100122102
423221303222120133
5201111204200423
65425335435315
7622034036414
oct135163523037
935260540572
1012512568863
115341023203
122512525b3b
1312453ca802
14869b2610b
154d376cc28
hex2e9cea61f

12512568863 has 2 divisors, whose sum is σ = 12512568864. Its totient is φ = 12512568862.

The previous prime is 12512568857. The next prime is 12512568889. The reversal of 12512568863 is 36886521521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12512568863 is a prime.

It is a super-2 number, since 2×125125688632 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12512568833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6256284431 + 6256284432.

It is an arithmetic number, because the mean of its divisors is an integer number (6256284432).

Almost surely, 212512568863 is an apocalyptic number.

12512568863 is a deficient number, since it is larger than the sum of its proper divisors (1).

12512568863 is an equidigital number, since it uses as much as digits as its factorization.

12512568863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691200, while the sum is 47.

The spelling of 12512568863 in words is "twelve billion, five hundred twelve million, five hundred sixty-eight thousand, eight hundred sixty-three".