44057137139 has 2 divisors, whose sum is σ = 44057137140. Its totient is φ = 44057137138.

The previous prime is 44057137127. The next prime is 44057137147. The reversal of 44057137139 is 93173175044.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44057137139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44057137139.

It is not a weakly prime, because it can be changed into another prime (44057137109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22028568569 + 22028568570.

It is an arithmetic number, because the mean of its divisors is an integer number (22028568570).

Almost surely, 2^44057137139 is an apocalyptic number.

44057137139 is a deficient number, since it is larger than the sum of its proper divisors (1).

44057137139 is an equidigital number, since it uses as much as digits as its factorization.

44057137139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 44.

The spelling of 44057137139 in words is "forty-four billion, fifty-seven million, one hundred thirty-seven thousand, one hundred thirty-nine".