8419394738 has 16 divisors (see below), whose sum is σ = 13378863960. Its totient is φ = 3960028416.

The previous prime is 8419394729. The next prime is 8419394783. The reversal of 8419394738 is 8374939148.

It can be written as a sum of positive squares in 4 ways, for example, as 8353411609 + 65983129 = 91397^2 + 8123^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4328 + ... + 129836.

Almost surely, 2^8419394738 is an apocalyptic number.

8419394738 is a deficient number, since it is larger than the sum of its proper divisors (4959469222).

8419394738 is a wasteful number, since it uses less digits than its factorization.

8419394738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127501.

The product of its digits is 5225472, while the sum is 56.

The square root of 8419394738 is about 91757.2598653643. The cubic root of 8419394738 is about 2034.3560143369.

The spelling of 8419394738 in words is "eight billion, four hundred nineteen million, three hundred ninety-four thousand, seven hundred thirty-eight".