6438040360312 has 16 divisors (see below), whose sum is σ = 13168718919000. Its totient is φ = 2926381981920.

The previous prime is 6438040360267. The next prime is 6438040360321. The reversal of 6438040360312 is 2130630408346.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36579774687 + ... + 36579774862.

Almost surely, 2^{6438040360312} is an apocalyptic number.

It is an amenable number.

6438040360312 is an abundant number, since it is smaller than the sum of its proper divisors (6730678558688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6438040360312 is a wasteful number, since it uses less digits than its factorization.

6438040360312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73159549566 (or 73159549562 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 40.

Adding to 6438040360312 its reverse (2130630408346), we get a palindrome (8568670768658).

The spelling of 6438040360312 in words is "six trillion, four hundred thirty-eight billion, forty million, three hundred sixty thousand, three hundred twelve".