4278242057 has 2 divisors, whose sum is σ = 4278242058. Its totient is φ = 4278242056.

The previous prime is 4278242051. The next prime is 4278242071. The reversal of 4278242057 is 7502428724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2667102736 + 1611139321 = 51644^2 + 40139^2 .

It is a cyclic number.

It is not a de Polignac number, because 4278242057 - 2¹⁴ = 4278225673 is a prime.

It is not a weakly prime, because it can be changed into another prime (4278242051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2139121028 + 2139121029.

It is an arithmetic number, because the mean of its divisors is an integer number (2139121029).

Almost surely, 2^4278242057 is an apocalyptic number.

It is an amenable number.

4278242057 is a deficient number, since it is larger than the sum of its proper divisors (1).

4278242057 is an equidigital number, since it uses as much as digits as its factorization.

4278242057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 250880, while the sum is 41.

The square root of 4278242057 is about 65408.2720838886. The cubic root of 4278242057 is about 1623.3859548578.

The spelling of 4278242057 in words is "four billion, two hundred seventy-eight million, two hundred forty-two thousand, fifty-seven".