5645633444 has 48 divisors (see below), whose sum is σ = 10997876736. Its totient is φ = 2514304800.

The previous prime is 5645633437. The next prime is 5645633501. The reversal of 5645633444 is 4443365465.

It is a super-2 number, since 2×5645633444² = 63746353968022602272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 5645633395 and 5645633404.

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, 503669 + ... + 514755.

It is an arithmetic number, because the mean of its divisors is an integer number (229122432).

Almost surely, 2^5645633444 is an apocalyptic number.

It is an amenable number.

5645633444 is a deficient number, since it is larger than the sum of its proper divisors (5352243292).

5645633444 is a wasteful number, since it uses less digits than its factorization.

5645633444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11336 (or 11334 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 44.

The square root of 5645633444 is about 75137.4303792724. The cubic root of 5645633444 is about 1780.6185457103.

The spelling of 5645633444 in words is "five billion, six hundred forty-five million, six hundred thirty-three thousand, four hundred forty-four".