6544144650454 has 8 divisors (see below), whose sum is σ = 9838887224040. Its totient is φ = 3264515575776.

The previous prime is 6544144650419. The next prime is 6544144650473. The reversal of 6544144650454 is 4540564414456.

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

It is a super-2 number, since 2×6544144650454² (a number of 26 digits) contains 22 as substring.

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, 3778373644 + ... + 3778375375.

It is an arithmetic number, because the mean of its divisors is an integer number (1229860903005).

Almost surely, 2^{6544144650454} is an apocalyptic number.

6544144650454 is a deficient number, since it is larger than the sum of its proper divisors (3294742573586).

6544144650454 is a wasteful number, since it uses less digits than its factorization.

6544144650454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7556749454.

The product of its (nonzero) digits is 18432000, while the sum is 52.

The spelling of 6544144650454 in words is "six trillion, five hundred forty-four billion, one hundred forty-four million, six hundred fifty thousand, four hundred fifty-four".