57143342849 has 2 divisors, whose sum is σ = 57143342850. Its totient is φ = 57143342848.

The previous prime is 57143342843. The next prime is 57143342869. The reversal of 57143342849 is 94824334175.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56879865025 + 263477824 = 238495^2 + 16232^2 .

It is a cyclic number.

It is not a de Polignac number, because 57143342849 - 2¹⁶ = 57143277313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57143342797 and 57143342806.

It is not a weakly prime, because it can be changed into another prime (57143342843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28571671424 + 28571671425.

It is an arithmetic number, because the mean of its divisors is an integer number (28571671425).

Almost surely, 2^57143342849 is an apocalyptic number.

It is an amenable number.

57143342849 is a deficient number, since it is larger than the sum of its proper divisors (1).

57143342849 is an equidigital number, since it uses as much as digits as its factorization.

57143342849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 50.

The spelling of 57143342849 in words is "fifty-seven billion, one hundred forty-three million, three hundred forty-two thousand, eight hundred forty-nine".