4424527576421 has 4 divisors (see below), whose sum is σ = 4424807324652. Its totient is φ = 4424247828192.

The previous prime is 4424527576367. The next prime is 4424527576429. The reversal of 4424527576421 is 1246757254244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1874243140900 + 2550284435521 = 1369030^2 + 1596961^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4424527576421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4424527576429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139850390 + ... + 139882023.

It is an arithmetic number, because the mean of its divisors is an integer number (1106201831163).

Almost surely, 2^{4424527576421} is an apocalyptic number.

It is an amenable number.

4424527576421 is a deficient number, since it is larger than the sum of its proper divisors (279748231).

4424527576421 is a wasteful number, since it uses less digits than its factorization.

4424527576421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279748230.

The product of its digits is 15052800, while the sum is 53.

The spelling of 4424527576421 in words is "four trillion, four hundred twenty-four billion, five hundred twenty-seven million, five hundred seventy-six thousand, four hundred twenty-one".