12571016389 has 2 divisors, whose sum is σ = 12571016390. Its totient is φ = 12571016388.

The previous prime is 12571016377. The next prime is 12571016467. The reversal of 12571016389 is 98361017521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8920802500 + 3650213889 = 94450^2 + 60417^2 .

It is a cyclic number.

It is not a de Polignac number, because 12571016389 - 2⁵ = 12571016357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12571016369) 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, 6285508194 + 6285508195.

It is an arithmetic number, because the mean of its divisors is an integer number (6285508195).

Almost surely, 2^12571016389 is an apocalyptic number.

It is an amenable number.

12571016389 is a deficient number, since it is larger than the sum of its proper divisors (1).

12571016389 is an equidigital number, since it uses as much as digits as its factorization.

12571016389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 43.

The spelling of 12571016389 in words is "twelve billion, five hundred seventy-one million, sixteen thousand, three hundred eighty-nine".