2040719865 has 16 divisors (see below), whose sum is σ = 3457219968. Its totient is φ = 1024361216.

The previous prime is 2040719861. The next prime is 2040719869. The reversal of 2040719865 is 5689170402.

It is an interprime number because it is at equal distance from previous prime (2040719861) and next prime (2040719869).

It is a cyclic number.

It is not a de Polignac number, because 2040719865 - 2² = 2040719861 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2040719861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4001157 + ... + 4001666.

It is an arithmetic number, because the mean of its divisors is an integer number (216076248).

Almost surely, 2^2040719865 is an apocalyptic number.

It is an amenable number.

2040719865 is a deficient number, since it is larger than the sum of its proper divisors (1416500103).

2040719865 is a wasteful number, since it uses less digits than its factorization.

2040719865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8002848.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 2040719865 is about 45174.3274991449. The cubic root of 2040719865 is about 1268.4143032204.

The spelling of 2040719865 in words is "two billion, forty million, seven hundred nineteen thousand, eight hundred sixty-five".