44281391856 has 40 divisors (see below), whose sum is σ = 123193104720. Its totient is φ = 13625043456.

The previous prime is 44281391851. The next prime is 44281391939. The reversal of 44281391856 is 65819318244.

It is a junction number, because it is equal to n+sod(n) for n = 44281391799 and 44281391808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44281391851) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 35481261 + ... + 35482508.

It is an arithmetic number, because the mean of its divisors is an integer number (3079827618).

Almost surely, 2^44281391856 is an apocalyptic number.

It is an amenable number.

44281391856 is an abundant number, since it is smaller than the sum of its proper divisors (78911712864).

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

44281391856 is a wasteful number, since it uses less digits than its factorization.

44281391856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70963793 (or 70963787 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 51.

The spelling of 44281391856 in words is "forty-four billion, two hundred eighty-one million, three hundred ninety-one thousand, eight hundred fifty-six".