6544404809274 has 16 divisors (see below), whose sum is σ = 13254490753920. Its totient is φ = 2153854747200.

The previous prime is 6544404809273. The next prime is 6544404809287. The reversal of 6544404809274 is 4729084044456.

It is not an unprimeable number, because it can be changed into a prime (6544404809273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6903380127 + ... + 6903381074.

It is an arithmetic number, because the mean of its divisors is an integer number (828405672120).

Almost surely, 2^{6544404809274} is an apocalyptic number.

6544404809274 is an abundant number, since it is smaller than the sum of its proper divisors (6710085944646).

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

6544404809274 is a wasteful number, since it uses less digits than its factorization.

6544404809274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13806761285.

The product of its (nonzero) digits is 30965760, while the sum is 57.

The spelling of 6544404809274 in words is "six trillion, five hundred forty-four billion, four hundred four million, eight hundred nine thousand, two hundred seventy-four".