44443859857 has 2 divisors, whose sum is σ = 44443859858. Its totient is φ = 44443859856.

The previous prime is 44443859851. The next prime is 44443859953. The reversal of 44443859857 is 75895834444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32984371456 + 11459488401 = 181616^2 + 107049^2 .

It is a cyclic number.

It is not a de Polignac number, because 44443859857 - 2⁷ = 44443859729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44443859795 and 44443859804.

It is not a weakly prime, because it can be changed into another prime (44443859851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22221929928 + 22221929929.

It is an arithmetic number, because the mean of its divisors is an integer number (22221929929).

Almost surely, 2^44443859857 is an apocalyptic number.

It is an amenable number.

44443859857 is a deficient number, since it is larger than the sum of its proper divisors (1).

44443859857 is an equidigital number, since it uses as much as digits as its factorization.

44443859857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77414400, while the sum is 61.

The spelling of 44443859857 in words is "forty-four billion, four hundred forty-three million, eight hundred fifty-nine thousand, eight hundred fifty-seven".