6745218838 has 16 divisors (see below), whose sum is σ = 10358783424. Its totient is φ = 3293098560.

The previous prime is 6745218829. The next prime is 6745218839. The reversal of 6745218838 is 8388125476.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6745218839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185070 + ... + 218497.

It is an arithmetic number, because the mean of its divisors is an integer number (647423964).

Almost surely, 2^6745218838 is an apocalyptic number.

6745218838 is a deficient number, since it is larger than the sum of its proper divisors (3613564586).

6745218838 is a wasteful number, since it uses less digits than its factorization.

6745218838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403767.

The product of its digits is 2580480, while the sum is 52.

The square root of 6745218838 is about 82129.2812460940. The cubic root of 6745218838 is about 1889.4352556210.

The spelling of 6745218838 in words is "six billion, seven hundred forty-five million, two hundred eighteen thousand, eight hundred thirty-eight".