12728837071 has 2 divisors, whose sum is σ = 12728837072. Its totient is φ = 12728837070.

The previous prime is 12728837021. The next prime is 12728837131. The reversal of 12728837071 is 17073882721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12728837071 - 2⁹ = 12728836559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12728837021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6364418535 + 6364418536.

It is an arithmetic number, because the mean of its divisors is an integer number (6364418536).

Almost surely, 2^12728837071 is an apocalyptic number.

12728837071 is a deficient number, since it is larger than the sum of its proper divisors (1).

12728837071 is an equidigital number, since it uses as much as digits as its factorization.

12728837071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 263424, while the sum is 46.

The spelling of 12728837071 in words is "twelve billion, seven hundred twenty-eight million, eight hundred thirty-seven thousand, seventy-one".