44387747856 has 135 divisors (see below), whose sum is σ = 126215207703. Its totient is φ = 14562478080.

The previous prime is 44387747839. The next prime is 44387747861. The reversal of 44387747856 is 65874778344.

The square root of 44387747856 is 210684.

It is a perfect power (a square), and thus also a powerful number.

44387747856 is a `hidden beast` number, since 4 + 43 + 8 + 77 + 478 + 56 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 19796490000 + 24591257856 = 140700^2 + 156816^2 .

It is a junction number, because it is equal to n+sod(n) for n = 44387747793 and 44387747802.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 245236086 + ... + 245236266.

Almost surely, 2^44387747856 is an apocalyptic number.

44387747856 is the 210684-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44387747856

44387747856 is an abundant number, since it is smaller than the sum of its proper divisors (81827459847).

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

44387747856 is an equidigital number, since it uses as much as digits as its factorization.

44387747856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570 (or 283 counting only the distinct ones).

The product of its digits is 126443520, while the sum is 63.

The spelling of 44387747856 in words is "forty-four billion, three hundred eighty-seven million, seven hundred forty-seven thousand, eight hundred fifty-six".