8138441694 has 8 divisors (see below), whose sum is σ = 16276883400. Its totient is φ = 2712813896.

The previous prime is 8138441683. The next prime is 8138441737. The reversal of 8138441694 is 4961448318.

It is a sphenic number, since it is the product of 3 distinct primes.

8138441694 is an admirable number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 678203469 + ... + 678203480.

It is an arithmetic number, because the mean of its divisors is an integer number (2034610425).

Almost surely, 2^8138441694 is an apocalyptic number.

8138441694 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8138441694 is a wasteful number, since it uses less digits than its factorization.

8138441694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356406954.

The product of its digits is 663552, while the sum is 48.

The square root of 8138441694 is about 90213.3121773056. The cubic root of 8138441694 is about 2011.4708913792.

The spelling of 8138441694 in words is "eight billion, one hundred thirty-eight million, four hundred forty-one thousand, six hundred ninety-four".