12140735857 has 2 divisors, whose sum is σ = 12140735858. Its totient is φ = 12140735856.

The previous prime is 12140735837. The next prime is 12140735899. The reversal of 12140735857 is 75853704121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6566022961 + 5574712896 = 81031^2 + 74664^2 .

It is a cyclic number.

It is not a de Polignac number, because 12140735857 - 2¹¹ = 12140733809 is a prime.

It is not a weakly prime, because it can be changed into another prime (12140735837) 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, 6070367928 + 6070367929.

It is an arithmetic number, because the mean of its divisors is an integer number (6070367929).

Almost surely, 2^12140735857 is an apocalyptic number.

It is an amenable number.

12140735857 is a deficient number, since it is larger than the sum of its proper divisors (1).

12140735857 is an equidigital number, since it uses as much as digits as its factorization.

12140735857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 235200, while the sum is 43.

The spelling of 12140735857 in words is "twelve billion, one hundred forty million, seven hundred thirty-five thousand, eight hundred fifty-seven".