4425400441644 has 48 divisors (see below), whose sum is σ = 12708842297088. Its totient is φ = 1167138577728.

The previous prime is 4425400441601. The next prime is 4425400441669. The reversal of 4425400441644 is 4461440045244.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 4425400441596 and 4425400441605.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2026281162 + ... + 2026283345.

It is an arithmetic number, because the mean of its divisors is an integer number (264767547856).

Almost surely, 2^{4425400441644} is an apocalyptic number.

It is an amenable number.

4425400441644 is an abundant number, since it is smaller than the sum of its proper divisors (8283441855444).

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

4425400441644 is a wasteful number, since it uses less digits than its factorization.

4425400441644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4052564534 (or 4052564532 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 42.

Adding to 4425400441644 its reverse (4461440045244), we get a palindrome (8886840486888).

The spelling of 4425400441644 in words is "four trillion, four hundred twenty-five billion, four hundred million, four hundred forty-one thousand, six hundred forty-four".