44353351644 has 48 divisors (see below), whose sum is σ = 118983879168. Its totient is φ = 12596499648.

The previous prime is 44353351597. The next prime is 44353351661. The reversal of 44353351644 is 44615335344.

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 = 44353351596 and 44353351605.

It is a congruent number.

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, 1566859 + ... + 1594914.

It is an arithmetic number, because the mean of its divisors is an integer number (2478830816).

Almost surely, 2^44353351644 is an apocalyptic number.

It is an amenable number.

44353351644 is an abundant number, since it is smaller than the sum of its proper divisors (74630527524).

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

44353351644 is a wasteful number, since it uses less digits than its factorization.

44353351644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3161954 (or 3161952 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 42.

Adding to 44353351644 its reverse (44615335344), we get a palindrome (88968686988).

The spelling of 44353351644 in words is "forty-four billion, three hundred fifty-three million, three hundred fifty-one thousand, six hundred forty-four".