4144427635520 has 56 divisors (see below), whose sum is σ = 10055124354024. Its totient is φ = 1626492348416.

The previous prime is 4144427635477. The next prime is 4144427635571. The reversal of 4144427635520 is 255367244414.

It can be written as a sum of positive squares in 4 ways, for example, as 315924933184 + 3828502702336 = 562072^2 + 1956656^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122165459 + ... + 122199378.

Almost surely, 2^{4144427635520} is an apocalyptic number.

4144427635520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4144427635520 is an abundant number, since it is smaller than the sum of its proper divisors (5910696718504).

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

4144427635520 is a wasteful number, since it uses less digits than its factorization.

4144427635520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244364907 (or 244364897 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 47.

The spelling of 4144427635520 in words is "four trillion, one hundred forty-four billion, four hundred twenty-seven million, six hundred thirty-five thousand, five hundred twenty".