6768972278 has 4 divisors (see below), whose sum is σ = 10153458420. Its totient is φ = 3384486138.

The previous prime is 6768972269. The next prime is 6768972283. The reversal of 6768972278 is 8722798676.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6768972278.

It is a congruent 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 as a sum of consecutive naturals, namely, 1692243068 + ... + 1692243071.

It is an arithmetic number, because the mean of its divisors is an integer number (2538364605).

Almost surely, 2^6768972278 is an apocalyptic number.

6768972278 is a deficient number, since it is larger than the sum of its proper divisors (3384486142).

6768972278 is a wasteful number, since it uses less digits than its factorization.

6768972278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384486141.

The product of its digits is 28449792, while the sum is 62.

The square root of 6768972278 is about 82273.7642143594. The cubic root of 6768972278 is about 1891.6505535091.

The spelling of 6768972278 in words is "six billion, seven hundred sixty-eight million, nine hundred seventy-two thousand, two hundred seventy-eight".