1940192911 has 2 divisors, whose sum is σ = 1940192912. Its totient is φ = 1940192910.

The previous prime is 1940192893. The next prime is 1940192987. The reversal of 1940192911 is 1192910491.

It is a weak prime.

It is an emirp because it is prime and its reverse (1192910491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1940192911 - 2¹⁷ = 1940061839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1940192411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970096455 + 970096456.

It is an arithmetic number, because the mean of its divisors is an integer number (970096456).

Almost surely, 2^1940192911 is an apocalyptic number.

1940192911 is a deficient number, since it is larger than the sum of its proper divisors (1).

1940192911 is an equidigital number, since it uses as much as digits as its factorization.

1940192911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 37.

The square root of 1940192911 is about 44047.6209459716. The cubic root of 1940192911 is about 1247.2350428658.

The spelling of 1940192911 in words is "one billion, nine hundred forty million, one hundred ninety-two thousand, nine hundred eleven".