4198378369 has 2 divisors, whose sum is σ = 4198378370. Its totient is φ = 4198378368.

The previous prime is 4198378333. The next prime is 4198378417. The reversal of 4198378369 is 9638738914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3385843344 + 812535025 = 58188^2 + 28505^2 .

It is a cyclic number.

It is not a de Polignac number, because 4198378369 - 2⁹ = 4198377857 is a prime.

It is a super-2 number, since 2×4198378369² = 35252761858574200322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4198378469) 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, 2099189184 + 2099189185.

It is an arithmetic number, because the mean of its divisors is an integer number (2099189185).

Almost surely, 2^4198378369 is an apocalyptic number.

It is an amenable number.

4198378369 is a deficient number, since it is larger than the sum of its proper divisors (1).

4198378369 is an equidigital number, since it uses as much as digits as its factorization.

4198378369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 58.

The square root of 4198378369 is about 64794.8946214129. The cubic root of 4198378369 is about 1613.2209696188.

The spelling of 4198378369 in words is "four billion, one hundred ninety-eight million, three hundred seventy-eight thousand, three hundred sixty-nine".