44289781057 has 8 divisors (see below), whose sum is σ = 44782325000. Its totient is φ = 43797970944.

The previous prime is 44289781051. The next prime is 44289781069. The reversal of 44289781057 is 75018798244.

It can be written as a sum of positive squares in 4 ways, for example, as 1076102416 + 43213678641 = 32804^2 + 207879^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44289781057 - 2¹⁵ = 44289748289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44289780989 and 44289781007.

It is not an unprimeable number, because it can be changed into a prime (44289781051) 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, 61632 + ... + 303937.

It is an arithmetic number, because the mean of its divisors is an integer number (5597790625).

Almost surely, 2^44289781057 is an apocalyptic number.

It is an amenable number.

44289781057 is a deficient number, since it is larger than the sum of its proper divisors (492543943).

44289781057 is a wasteful number, since it uses less digits than its factorization.

44289781057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366915.

The product of its (nonzero) digits is 4515840, while the sum is 55.

The spelling of 44289781057 in words is "forty-four billion, two hundred eighty-nine million, seven hundred eighty-one thousand, fifty-seven".