6918162137944 has 16 divisors (see below), whose sum is σ = 13025828296800. Its totient is φ = 3444607925472.

The previous prime is 6918162137893. The next prime is 6918162137947. The reversal of 6918162137944 is 4497312618196.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6918162137947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1809140907 + ... + 1809144730.

It is an arithmetic number, because the mean of its divisors is an integer number (814114268550).

Almost surely, 2^{6918162137944} is an apocalyptic number.

It is an amenable number.

6918162137944 is a deficient number, since it is larger than the sum of its proper divisors (6107666158856).

6918162137944 is a wasteful number, since it uses less digits than its factorization.

6918162137944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3618285882 (or 3618285878 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 61.

The spelling of 6918162137944 in words is "six trillion, nine hundred eighteen billion, one hundred sixty-two million, one hundred thirty-seven thousand, nine hundred forty-four".