44420424137 has 2 divisors, whose sum is σ = 44420424138. Its totient is φ = 44420424136.

The previous prime is 44420424133. The next prime is 44420424151. The reversal of 44420424137 is 73142402444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22462815376 + 21957608761 = 149876^2 + 148181^2 .

It is a cyclic number.

It is not a de Polignac number, because 44420424137 - 2² = 44420424133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44420424097 and 44420424106.

It is not a weakly prime, because it can be changed into another prime (44420424133) 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, 22210212068 + 22210212069.

It is an arithmetic number, because the mean of its divisors is an integer number (22210212069).

Almost surely, 2^44420424137 is an apocalyptic number.

It is an amenable number.

44420424137 is a deficient number, since it is larger than the sum of its proper divisors (1).

44420424137 is an equidigital number, since it uses as much as digits as its factorization.

44420424137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86016, while the sum is 35.

The spelling of 44420424137 in words is "forty-four billion, four hundred twenty million, four hundred twenty-four thousand, one hundred thirty-seven".