6177678778 has 16 divisors (see below), whose sum is σ = 9470597760. Its totient is φ = 3020909056.

The previous prime is 6177678761. The next prime is 6177678797. The reversal of 6177678778 is 8778767716.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 109125 + ... + 155767.

It is an arithmetic number, because the mean of its divisors is an integer number (591912360).

Almost surely, 2^6177678778 is an apocalyptic number.

6177678778 is a deficient number, since it is larger than the sum of its proper divisors (3292918982).

6177678778 is a wasteful number, since it uses less digits than its factorization.

6177678778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48101.

The product of its digits is 38723328, while the sum is 64.

The square root of 6177678778 is about 78598.2110356209. The cubic root of 6177678778 is about 1834.8832696548.

The spelling of 6177678778 in words is "six billion, one hundred seventy-seven million, six hundred seventy-eight thousand, seven hundred seventy-eight".