2001895019 has 2 divisors, whose sum is σ = 2001895020. Its totient is φ = 2001895018.

The previous prime is 2001895001. The next prime is 2001895037. The reversal of 2001895019 is 9105981002.

It is a balanced prime because it is at equal distance from previous prime (2001895001) and next prime (2001895037).

It is a cyclic number.

It is not a de Polignac number, because 2001895019 - 2¹⁶ = 2001829483 is a prime.

It is a super-2 number, since 2×2001895019² = 8015167334194020722, 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 2001895019.

It is not a weakly prime, because it can be changed into another prime (2001891019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000947509 + 1000947510.

It is an arithmetic number, because the mean of its divisors is an integer number (1000947510).

Almost surely, 2^2001895019 is an apocalyptic number.

2001895019 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001895019 is an equidigital number, since it uses as much as digits as its factorization.

2001895019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 2001895019 is about 44742.5414901747. The cubic root of 2001895019 is about 1260.3188533351.

The spelling of 2001895019 in words is "two billion, one million, eight hundred ninety-five thousand, nineteen".