3694319819 has 2 divisors, whose sum is σ = 3694319820. Its totient is φ = 3694319818.

The previous prime is 3694319813. The next prime is 3694319873. The reversal of 3694319819 is 9189134963.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3694319819 is a prime.

It is a super-2 number, since 2×3694319819² = 27295997850112385522, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (3694319813) 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, 1847159909 + 1847159910.

It is an arithmetic number, because the mean of its divisors is an integer number (1847159910).

Almost surely, 2^3694319819 is an apocalyptic number.

3694319819 is a deficient number, since it is larger than the sum of its proper divisors (1).

3694319819 is an equidigital number, since it uses as much as digits as its factorization.

3694319819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1259712, while the sum is 53.

The square root of 3694319819 is about 60780.9165692654. The cubic root of 3694319819 is about 1545.8884887217. Note that the first 3 decimals are identical.

The spelling of 3694319819 in words is "three billion, six hundred ninety-four million, three hundred nineteen thousand, eight hundred nineteen".