444413251661436 has 36 divisors (see below), whose sum is σ = 1133319339424272. Its totient is φ = 146826797007744.

The previous prime is 444413251661419. The next prime is 444413251661447. The reversal of 444413251661436 is 634166152314444.

444413251661436 is a `hidden beast` number, since 4 + 4 + 4 + 4 + 1 + 3 + 2 + 5 + 16 + 614 + 3 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×444413251661436² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54623060296 + ... + 54623068431.

Almost surely, 2^{444413251661436} is an apocalyptic number.

It is an amenable number.

444413251661436 is an abundant number, since it is smaller than the sum of its proper divisors (688906087762836).

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

444413251661436 is a wasteful number, since it uses less digits than its factorization.

444413251661436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109246128850 (or 109246128845 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 54.

The spelling of 444413251661436 in words is "four hundred forty-four trillion, four hundred thirteen billion, two hundred fifty-one million, six hundred sixty-one thousand, four hundred thirty-six".