6740844878 has 4 divisors (see below), whose sum is σ = 10111267320. Its totient is φ = 3370422438.

The previous prime is 6740844863. The next prime is 6740844919. The reversal of 6740844878 is 8784480476.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1685211218 + ... + 1685211221.

It is an arithmetic number, because the mean of its divisors is an integer number (2527816830).

Almost surely, 2^6740844878 is an apocalyptic number.

6740844878 is a deficient number, since it is larger than the sum of its proper divisors (3370422442).

6740844878 is a wasteful number, since it uses less digits than its factorization.

6740844878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3370422441.

The product of its (nonzero) digits is 9633792, while the sum is 56.

The square root of 6740844878 is about 82102.6484225692. The cubic root of 6740844878 is about 1889.0267637488.

The spelling of 6740844878 in words is "six billion, seven hundred forty million, eight hundred forty-four thousand, eight hundred seventy-eight".