4042251019 has 2 divisors, whose sum is σ = 4042251020. Its totient is φ = 4042251018.

The previous prime is 4042251013. The next prime is 4042251047. The reversal of 4042251019 is 9101522404.

It is an a-pointer prime, because the next prime (4042251047) can be obtained adding 4042251019 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4042251019 - 2⁹ = 4042250507 is a prime.

It is a super-2 number, since 2×4042251019² = 32679586601213076722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4042251013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021125509 + 2021125510.

It is an arithmetic number, because the mean of its divisors is an integer number (2021125510).

Almost surely, 2^4042251019 is an apocalyptic number.

4042251019 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042251019 is an equidigital number, since it uses as much as digits as its factorization.

4042251019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 4042251019 is about 63578.6994126177. The cubic root of 4042251019 is about 1592.9705971772.

The spelling of 4042251019 in words is "four billion, forty-two million, two hundred fifty-one thousand, nineteen".