4518284644447 has 12 divisors (see below), whose sum is σ = 5269182521200. Its totient is φ = 3872781666264.

The previous prime is 4518284644399. The next prime is 4518284644451. The reversal of 4518284644447 is 7444464828154.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 4518284644447 - 2²⁷ = 4518150426719 is a prime.

It is a super-2 number, since 2×4518284644447² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4518284644547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39309753 + ... + 39424525.

Almost surely, 2^{4518284644447} is an apocalyptic number.

4518284644447 is a deficient number, since it is larger than the sum of its proper divisors (750897876753).

4518284644447 is an frugal number, since it uses more digits than its factorization.

4518284644447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229567 (or 114780 counting only the distinct ones).

The product of its digits is 110100480, while the sum is 61.

The spelling of 4518284644447 in words is "four trillion, five hundred eighteen billion, two hundred eighty-four million, six hundred forty-four thousand, four hundred forty-seven".