4099118381 has 2 divisors, whose sum is σ = 4099118382. Its totient is φ = 4099118380.

The previous prime is 4099118347. The next prime is 4099118383. The reversal of 4099118381 is 1838119904.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2776341481 + 1322776900 = 52691^2 + 36370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4099118381 is a prime.

It is a super-2 number, since 2×4099118381² = 33605543002904122322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 4099118383, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4099118383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2049559190 + 2049559191.

It is an arithmetic number, because the mean of its divisors is an integer number (2049559191).

Almost surely, 2^4099118381 is an apocalyptic number.

It is an amenable number.

4099118381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4099118381 is an equidigital number, since it uses as much as digits as its factorization.

4099118381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 44.

The square root of 4099118381 is about 64024.3577164191. The cubic root of 4099118381 is about 1600.4059361939.

The spelling of 4099118381 in words is "four billion, ninety-nine million, one hundred eighteen thousand, three hundred eighty-one".