7794738678 has 8 divisors (see below), whose sum is σ = 15589477368. Its totient is φ = 2598246224.

The previous prime is 7794738667. The next prime is 7794738703. The reversal of 7794738678 is 8768374977.

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

7794738678 is an admirable number.

It is a super-3 number, since 3×7794738678³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 649561551 + ... + 649561562.

It is an arithmetic number, because the mean of its divisors is an integer number (1948684671).

Almost surely, 2^7794738678 is an apocalyptic number.

7794738678 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.

7794738678 is a wasteful number, since it uses less digits than its factorization.

7794738678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299123118.

The product of its digits is 99574272, while the sum is 66.

The square root of 7794738678 is about 88287.8172682959. The cubic root of 7794738678 is about 1982.7464757929.

The spelling of 7794738678 in words is "seven billion, seven hundred ninety-four million, seven hundred thirty-eight thousand, six hundred seventy-eight".