6918427378 has 8 divisors (see below), whose sum is σ = 10414573020. Its totient is φ = 3446903040.

The previous prime is 6918427367. The next prime is 6918427391. The reversal of 6918427378 is 8737248196.

It can be written as a sum of positive squares in 2 ways, for example, as 6602050009 + 316377369 = 81253^2 + 17787^2 .

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

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, 6154623 + ... + 6155746.

Almost surely, 2^6918427378 is an apocalyptic number.

6918427378 is a deficient number, since it is larger than the sum of its proper divisors (3496145642).

6918427378 is a wasteful number, since it uses less digits than its factorization.

6918427378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12310652.

The product of its digits is 4064256, while the sum is 55.

The square root of 6918427378 is about 83177.0844523899. The cubic root of 6918427378 is about 1905.4715207959.

The spelling of 6918427378 in words is "six billion, nine hundred eighteen million, four hundred twenty-seven thousand, three hundred seventy-eight".