6798138078 has 8 divisors (see below), whose sum is σ = 13596276168. Its totient is φ = 2266046024.

The previous prime is 6798138077. The next prime is 6798138101. The reversal of 6798138078 is 8708318976.

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

6798138078 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6798138071) by changing a digit.

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, 566511501 + ... + 566511512.

It is an arithmetic number, because the mean of its divisors is an integer number (1699534521).

Almost surely, 2^6798138078 is an apocalyptic number.

6798138078 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.

6798138078 is a wasteful number, since it uses less digits than its factorization.

6798138078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133023018.

The product of its (nonzero) digits is 4064256, while the sum is 57.

The square root of 6798138078 is about 82450.8221790420. The cubic root of 6798138078 is about 1894.3635429431.

The spelling of 6798138078 in words is "six billion, seven hundred ninety-eight million, one hundred thirty-eight thousand, seventy-eight".