12805147253 has 2 divisors, whose sum is σ = 12805147254. Its totient is φ = 12805147252.

The previous prime is 12805147247. The next prime is 12805147283. The reversal of 12805147253 is 35274150821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11029620484 + 1775526769 = 105022^2 + 42137^2 .

It is a cyclic number.

It is not a de Polignac number, because 12805147253 - 2¹⁴ = 12805130869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12805147283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6402573626 + 6402573627.

It is an arithmetic number, because the mean of its divisors is an integer number (6402573627).

Almost surely, 2^12805147253 is an apocalyptic number.

It is an amenable number.

12805147253 is a deficient number, since it is larger than the sum of its proper divisors (1).

12805147253 is an equidigital number, since it uses as much as digits as its factorization.

12805147253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 38.

The spelling of 12805147253 in words is "twelve billion, eight hundred five million, one hundred forty-seven thousand, two hundred fifty-three".