44185863856 has 20 divisors (see below), whose sum is σ = 85722631704. Its totient is φ = 22063894400.

The previous prime is 44185863823. The next prime is 44185863913. The reversal of 44185863856 is 65836858144.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 44185863856.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1802290 + ... + 1826641.

Almost surely, 2^44185863856 is an apocalyptic number.

It is an amenable number.

44185863856 is a deficient number, since it is larger than the sum of its proper divisors (41536767848).

44185863856 is a wasteful number, since it uses less digits than its factorization.

44185863856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629700 (or 3629694 counting only the distinct ones).

The product of its digits is 22118400, while the sum is 58.

The spelling of 44185863856 in words is "forty-four billion, one hundred eighty-five million, eight hundred sixty-three thousand, eight hundred fifty-six".