5644649681472 has 56 divisors (see below), whose sum is σ = 14935417257376. Its totient is φ = 1881472416768.

The previous prime is 5644649681459. The next prime is 5644649681477. The reversal of 5644649681472 is 2741869464465.

It is not an unprimeable number, because it can be changed into a prime (5644649681477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4167363 + ... + 5353149.

It is an arithmetic number, because the mean of its divisors is an integer number (266703879596).

Almost surely, 2^{5644649681472} is an apocalyptic number.

It is an amenable number.

5644649681472 is an abundant number, since it is smaller than the sum of its proper divisors (9290767575904).

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

5644649681472 is a wasteful number, since it uses less digits than its factorization.

5644649681472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210595 (or 1210585 counting only the distinct ones).

The product of its digits is 278691840, while the sum is 66.

The spelling of 5644649681472 in words is "five trillion, six hundred forty-four billion, six hundred forty-nine million, six hundred eighty-one thousand, four hundred seventy-two".