4430404011991 has 2 divisors, whose sum is σ = 4430404011992. Its totient is φ = 4430404011990.

The previous prime is 4430404011961. The next prime is 4430404012091. The reversal of 4430404011991 is 1991104040344.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4430404011991 - 2¹⁹ = 4430403487703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4430404011961) 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, 2215202005995 + 2215202005996.

It is an arithmetic number, because the mean of its divisors is an integer number (2215202005996).

Almost surely, 2^{4430404011991} is an apocalyptic number.

4430404011991 is a deficient number, since it is larger than the sum of its proper divisors (1).

4430404011991 is an equidigital number, since it uses as much as digits as its factorization.

4430404011991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 4430404011991 in words is "four trillion, four hundred thirty billion, four hundred four million, eleven thousand, nine hundred ninety-one".