44044242139 has 2 divisors, whose sum is σ = 44044242140. Its totient is φ = 44044242138.

The previous prime is 44044242131. The next prime is 44044242157. The reversal of 44044242139 is 93124244044.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44044242139 - 2³ = 44044242131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44044242098 and 44044242107.

It is not a weakly prime, because it can be changed into another prime (44044242131) 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, 22022121069 + 22022121070.

It is an arithmetic number, because the mean of its divisors is an integer number (22022121070).

Almost surely, 2^44044242139 is an apocalyptic number.

44044242139 is a deficient number, since it is larger than the sum of its proper divisors (1).

44044242139 is an equidigital number, since it uses as much as digits as its factorization.

44044242139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 37.

The spelling of 44044242139 in words is "forty-four billion, forty-four million, two hundred forty-two thousand, one hundred thirty-nine".