4644142057 has 2 divisors, whose sum is σ = 4644142058. Its totient is φ = 4644142056.

The previous prime is 4644142043. The next prime is 4644142073. The reversal of 4644142057 is 7502414464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4567597056 + 76545001 = 67584^2 + 8749^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4644142057 is a prime.

It is not a weakly prime, because it can be changed into another prime (4644142007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2322071028 + 2322071029.

It is an arithmetic number, because the mean of its divisors is an integer number (2322071029).

Almost surely, 2^4644142057 is an apocalyptic number.

It is an amenable number.

4644142057 is a deficient number, since it is larger than the sum of its proper divisors (1).

4644142057 is an equidigital number, since it uses as much as digits as its factorization.

4644142057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 37.

The square root of 4644142057 is about 68147.9424267527. The cubic root of 4644142057 is about 1668.4063414383.

The spelling of 4644142057 in words is "four billion, six hundred forty-four million, one hundred forty-two thousand, fifty-seven".