179941044991 has 2 divisors, whose sum is σ = 179941044992. Its totient is φ = 179941044990.

The previous prime is 179941044989. The next prime is 179941045049. The reversal of 179941044991 is 199440149971.

It is an a-pointer prime, because the next prime (179941045049) can be obtained adding 179941044991 to its sum of digits (58).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 179941044991 - 2¹ = 179941044989 is a prime.

Together with 179941044989, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (179941044911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89970522495 + 89970522496.

It is an arithmetic number, because the mean of its divisors is an integer number (89970522496).

Almost surely, 2^179941044991 is an apocalyptic number.

179941044991 is a deficient number, since it is larger than the sum of its proper divisors (1).

179941044991 is an equidigital number, since it uses as much as digits as its factorization.

179941044991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 58.

The spelling of 179941044991 in words is "one hundred seventy-nine billion, nine hundred forty-one million, forty-four thousand, nine hundred ninety-one".