44394403919 has 2 divisors, whose sum is σ = 44394403920. Its totient is φ = 44394403918.

The previous prime is 44394403913. The next prime is 44394403951. The reversal of 44394403919 is 91930449344.

It is a happy number.

44394403919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44394403919 - 2¹² = 44394399823 is a prime.

It is a super-2 number, since 2×44394403919² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44394403913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22197201959 + 22197201960.

It is an arithmetic number, because the mean of its divisors is an integer number (22197201960).

Almost surely, 2^44394403919 is an apocalyptic number.

44394403919 is a deficient number, since it is larger than the sum of its proper divisors (1).

44394403919 is an equidigital number, since it uses as much as digits as its factorization.

44394403919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The spelling of 44394403919 in words is "forty-four billion, three hundred ninety-four million, four hundred three thousand, nine hundred nineteen".