5444975644 has 24 divisors (see below), whose sum is σ = 9764643168. Its totient is φ = 2655125760.

The previous prime is 5444975621. The next prime is 5444975671. The reversal of 5444975644 is 4465794445.

It is a junction number, because it is equal to n+sod(n) for n = 5444975591 and 5444975600.

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, 705792 + ... + 713464.

It is an arithmetic number, because the mean of its divisors is an integer number (406860132).

Almost surely, 2^5444975644 is an apocalyptic number.

It is an amenable number.

5444975644 is a deficient number, since it is larger than the sum of its proper divisors (4319667524).

5444975644 is a wasteful number, since it uses less digits than its factorization.

5444975644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12045 (or 12043 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 52.

The square root of 5444975644 is about 73790.0782219398. The cubic root of 5444975644 is about 1759.2679078996.

The spelling of 5444975644 in words is "five billion, four hundred forty-four million, nine hundred seventy-five thousand, six hundred forty-four".