6736673778 has 16 divisors (see below), whose sum is σ = 13495191840. Its totient is φ = 2241917216.

The previous prime is 6736673777. The next prime is 6736673831. The reversal of 6736673778 is 8773766376.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6736673773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 906168 + ... + 913571.

It is an arithmetic number, because the mean of its divisors is an integer number (843449490).

Almost surely, 2^6736673778 is an apocalyptic number.

6736673778 is an abundant number, since it is smaller than the sum of its proper divisors (6758518062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6736673778 is a wasteful number, since it uses less digits than its factorization.

6736673778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820361.

The product of its digits is 37340352, while the sum is 60.

The square root of 6736673778 is about 82077.2427533966. The cubic root of 6736673778 is about 1888.6370526951.

The spelling of 6736673778 in words is "six billion, seven hundred thirty-six million, six hundred seventy-three thousand, seven hundred seventy-eight".