4444461609645 has 32 divisors (see below), whose sum is σ = 7181173868544. Its totient is φ = 2347040808000.

The previous prime is 4444461609619. The next prime is 4444461609667. The reversal of 4444461609645 is 5469061644444.

It is not a de Polignac number, because 4444461609645 - 2⁸ = 4444461609389 is a prime.

It is a super-3 number, since 3×4444461609645³ (a number of 39 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11161630 + ... + 11552960.

It is an arithmetic number, because the mean of its divisors is an integer number (224411683392).

Almost surely, 2^{4444461609645} is an apocalyptic number.

It is an amenable number.

4444461609645 is a deficient number, since it is larger than the sum of its proper divisors (2736712258899).

4444461609645 is a wasteful number, since it uses less digits than its factorization.

4444461609645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398793.

The product of its (nonzero) digits is 39813120, while the sum is 57.

The spelling of 4444461609645 in words is "four trillion, four hundred forty-four billion, four hundred sixty-one million, six hundred nine thousand, six hundred forty-five".