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12877808653 is a prime number
BaseRepresentation
bin10111111111001001…
…11100010000001101
31020020110212110110001
423333210330100031
5202333204334103
65525504044301
7634060365433
oct137744742015
936213773401
1012877808653
115509207276
1225b4903691
1312a2c8b528
148a243cd53
1550586701d
hex2ff93c40d

12877808653 has 2 divisors, whose sum is σ = 12877808654. Its totient is φ = 12877808652.

The previous prime is 12877808617. The next prime is 12877808681. The reversal of 12877808653 is 35680877821.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12865684329 + 12124324 = 113427^2 + 3482^2 .

It is a cyclic number.

It is not a de Polignac number, because 12877808653 - 225 = 12844254221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12877808594 and 12877808603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12877800653) 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, 6438904326 + 6438904327.

It is an arithmetic number, because the mean of its divisors is an integer number (6438904327).

Almost surely, 212877808653 is an apocalyptic number.

It is an amenable number.

12877808653 is a deficient number, since it is larger than the sum of its proper divisors (1).

12877808653 is an equidigital number, since it uses as much as digits as its factorization.

12877808653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4515840, while the sum is 55.

The spelling of 12877808653 in words is "twelve billion, eight hundred seventy-seven million, eight hundred eight thousand, six hundred fifty-three".