384044096896991 has 2 divisors, whose sum is σ = 384044096896992. Its totient is φ = 384044096896990.

The previous prime is 384044096896981. The next prime is 384044096897077. The reversal of 384044096896991 is 199698690440483.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 384044096896991 - 2²⁶ = 384044029788127 is a prime.

It is a super-2 number, since 2×384044096896991² (a number of 30 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (384044096896981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192022048448495 + 192022048448496.

It is an arithmetic number, because the mean of its divisors is an integer number (192022048448496).

Almost surely, 2^{384044096896991} is an apocalyptic number.

384044096896991 is a deficient number, since it is larger than the sum of its proper divisors (1).

384044096896991 is an equidigital number, since it uses as much as digits as its factorization.

384044096896991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2902376448, while the sum is 80.

The spelling of 384044096896991 in words is "three hundred eighty-four trillion, forty-four billion, ninety-six million, eight hundred ninety-six thousand, nine hundred ninety-one".