3818745019 has 2 divisors, whose sum is σ = 3818745020. Its totient is φ = 3818745018.

The previous prime is 3818744999. The next prime is 3818745023. The reversal of 3818745019 is 9105478183.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3818745019 - 2¹⁵ = 3818712251 is a prime.

It is a super-2 number, since 2×3818745019² = 29165627040274620722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3818745019.

It is not a weakly prime, because it can be changed into another prime (3818745089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1909372509 + 1909372510.

It is an arithmetic number, because the mean of its divisors is an integer number (1909372510).

Almost surely, 2^3818745019 is an apocalyptic number.

3818745019 is a deficient number, since it is larger than the sum of its proper divisors (1).

3818745019 is an equidigital number, since it uses as much as digits as its factorization.

3818745019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 46.

The square root of 3818745019 is about 61795.9951695901. The cubic root of 3818745019 is about 1563.0524579035.

The spelling of 3818745019 in words is "three billion, eight hundred eighteen million, seven hundred forty-five thousand, nineteen".