444565613345 has 32 divisors (see below), whose sum is σ = 610973798400. Its totient is φ = 304203556800.

The previous prime is 444565613329. The next prime is 444565613351. The reversal of 444565613345 is 543316565444.

It is a happy number.

It is not a de Polignac number, because 444565613345 - 2⁴ = 444565613329 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 444565613293 and 444565613302.

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, 89790620 + ... + 89795570.

It is an arithmetic number, because the mean of its divisors is an integer number (19092931200).

Almost surely, 2^444565613345 is an apocalyptic number.

It is an amenable number.

444565613345 is a deficient number, since it is larger than the sum of its proper divisors (166408185055).

444565613345 is a wasteful number, since it uses less digits than its factorization.

444565613345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9845.

The product of its digits is 10368000, while the sum is 50.

The spelling of 444565613345 in words is "four hundred forty-four billion, five hundred sixty-five million, six hundred thirteen thousand, three hundred forty-five".