4321731056447 has 64 divisors (see below), whose sum is σ = 5165936455680. Its totient is φ = 3537367593984.

The previous prime is 4321731056443. The next prime is 4321731056473. The reversal of 4321731056447 is 7446501371234.

It is not a de Polignac number, because 4321731056447 - 2² = 4321731056443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4321731056443) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8591910398 + ... + 8591910900.

It is an arithmetic number, because the mean of its divisors is an integer number (80717757120).

Almost surely, 2^{4321731056447} is an apocalyptic number.

4321731056447 is a deficient number, since it is larger than the sum of its proper divisors (844205399233).

4321731056447 is a wasteful number, since it uses less digits than its factorization.

4321731056447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632.

The product of its (nonzero) digits is 1693440, while the sum is 47.

The spelling of 4321731056447 in words is "four trillion, three hundred twenty-one billion, seven hundred thirty-one million, fifty-six thousand, four hundred forty-seven".