57143643049 has 2 divisors, whose sum is σ = 57143643050. Its totient is φ = 57143643048.

The previous prime is 57143643047. The next prime is 57143643061. The reversal of 57143643049 is 94034634175.

57143643049 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., 45750215449 + 11393427600 = 213893^2 + 106740^2 .

It is a cyclic number.

It is not a de Polignac number, because 57143643049 - 2¹ = 57143643047 is a prime.

Together with 57143643047, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (57143643043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28571821524 + 28571821525.

It is an arithmetic number, because the mean of its divisors is an integer number (28571821525).

Almost surely, 2^57143643049 is an apocalyptic number.

It is an amenable number.

57143643049 is a deficient number, since it is larger than the sum of its proper divisors (1).

57143643049 is an equidigital number, since it uses as much as digits as its factorization.

57143643049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 57143643049 in words is "fifty-seven billion, one hundred forty-three million, six hundred forty-three thousand, forty-nine".