6743778123 has 8 divisors (see below), whose sum is σ = 8992259136. Its totient is φ = 4495574600.

The previous prime is 6743778109. The next prime is 6743778131. The reversal of 6743778123 is 3218773476.

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

It is a cyclic number.

It is not a de Polignac number, because 6743778123 - 2¹² = 6743774027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6743778133) by changing a digit.

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, 3813 + ... + 116198.

It is an arithmetic number, because the mean of its divisors is an integer number (1124032392).

Almost surely, 2^6743778123 is an apocalyptic number.

6743778123 is a deficient number, since it is larger than the sum of its proper divisors (2248481013).

6743778123 is a wasteful number, since it uses less digits than its factorization.

6743778123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138745.

The product of its digits is 1185408, while the sum is 48.

The square root of 6743778123 is about 82120.5097585250. The cubic root of 6743778123 is about 1889.3007242040.

The spelling of 6743778123 in words is "six billion, seven hundred forty-three million, seven hundred seventy-eight thousand, one hundred twenty-three".