4081794091 has 2 divisors, whose sum is σ = 4081794092. Its totient is φ = 4081794090.

The previous prime is 4081793999. The next prime is 4081794137. The reversal of 4081794091 is 1904971804.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4081794091 is a prime.

It is a super-2 number, since 2×4081794091² = 33322086002645032562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4081794191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2040897045 + 2040897046.

It is an arithmetic number, because the mean of its divisors is an integer number (2040897046).

Almost surely, 2^4081794091 is an apocalyptic number.

4081794091 is a deficient number, since it is larger than the sum of its proper divisors (1).

4081794091 is an equidigital number, since it uses as much as digits as its factorization.

4081794091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 4081794091 is about 63888.9199392195. The cubic root of 4081794091 is about 1598.1481297028.

The spelling of 4081794091 in words is "four billion, eighty-one million, seven hundred ninety-four thousand, ninety-one".