4021444134436 has 24 divisors (see below), whose sum is σ = 7417657971360. Its totient is φ = 1902391416000.

The previous prime is 4021444134413. The next prime is 4021444134437. The reversal of 4021444134436 is 6344314441204.

It is not an unprimeable number, because it can be changed into a prime (4021444134437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34708090 + ... + 34823761.

It is an arithmetic number, because the mean of its divisors is an integer number (309069082140).

Almost surely, 2^{4021444134436} is an apocalyptic number.

It is an amenable number.

4021444134436 is a deficient number, since it is larger than the sum of its proper divisors (3396213836924).

4021444134436 is a wasteful number, since it uses less digits than its factorization.

4021444134436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69532635 (or 69532633 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 40.

The spelling of 4021444134436 in words is "four trillion, twenty-one billion, four hundred forty-four million, one hundred thirty-four thousand, four hundred thirty-six".