57143643061 has 2 divisors, whose sum is σ = 57143643062. Its totient is φ = 57143643060.

The previous prime is 57143643049. The next prime is 57143643077. The reversal of 57143643061 is 16034634175.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40316624100 + 16827018961 = 200790^2 + 129719^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57143643061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57143643091) 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, 28571821530 + 28571821531.

It is an arithmetic number, because the mean of its divisors is an integer number (28571821531).

Almost surely, 2^57143643061 is an apocalyptic number.

It is an amenable number.

57143643061 is a deficient number, since it is larger than the sum of its proper divisors (1).

57143643061 is an equidigital number, since it uses as much as digits as its factorization.

57143643061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 57143643061 in words is "fifty-seven billion, one hundred forty-three million, six hundred forty-three thousand, sixty-one".