6738395678 has 16 divisors (see below), whose sum is σ = 11568269184. Its totient is φ = 2883700440.

The previous prime is 6738395641. The next prime is 6738395681. The reversal of 6738395678 is 8765938376.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6738395678.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338600 + ... + 357947.

It is an arithmetic number, because the mean of its divisors is an integer number (723016824).

Almost surely, 2^6738395678 is an apocalyptic number.

6738395678 is a deficient number, since it is larger than the sum of its proper divisors (4829873506).

6738395678 is a wasteful number, since it uses less digits than its factorization.

6738395678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697247.

The product of its digits is 45722880, while the sum is 62.

The square root of 6738395678 is about 82087.7315924859. The cubic root of 6738395678 is about 1888.7979514418.

The spelling of 6738395678 in words is "six billion, seven hundred thirty-eight million, three hundred ninety-five thousand, six hundred seventy-eight".