44000400019 has 2 divisors, whose sum is σ = 44000400020. Its totient is φ = 44000400018.

The previous prime is 44000400007. The next prime is 44000400029. The reversal of 44000400019 is 91000400044.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44000400019 is a prime.

It is a super-2 number, since 2×44000400019² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (44000400029) 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 as a sum of consecutive naturals, namely, 22000200009 + 22000200010.

It is an arithmetic number, because the mean of its divisors is an integer number (22000200010).

Almost surely, 2^44000400019 is an apocalyptic number.

44000400019 is a deficient number, since it is larger than the sum of its proper divisors (1).

44000400019 is an equidigital number, since it uses as much as digits as its factorization.

44000400019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The spelling of 44000400019 in words is "forty-four billion, four hundred thousand, nineteen".