12148992857 has 2 divisors, whose sum is σ = 12148992858. Its totient is φ = 12148992856.

The previous prime is 12148992841. The next prime is 12148992887. The reversal of 12148992857 is 75829984121.

12148992857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11377208896 + 771783961 = 106664^2 + 27781^2 .

It is a cyclic number.

It is not a de Polignac number, because 12148992857 - 2⁴ = 12148992841 is a prime.

It is not a weakly prime, because it can be changed into another prime (12148992827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6074496428 + 6074496429.

It is an arithmetic number, because the mean of its divisors is an integer number (6074496429).

Almost surely, 2^12148992857 is an apocalyptic number.

It is an amenable number.

12148992857 is a deficient number, since it is larger than the sum of its proper divisors (1).

12148992857 is an equidigital number, since it uses as much as digits as its factorization.

12148992857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2903040, while the sum is 56.

The spelling of 12148992857 in words is "twelve billion, one hundred forty-eight million, nine hundred ninety-two thousand, eight hundred fifty-seven".