44135432197 has 2 divisors, whose sum is σ = 44135432198. Its totient is φ = 44135432196.

The previous prime is 44135432191. The next prime is 44135432221. The reversal of 44135432197 is 79123453144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43919165761 + 216266436 = 209569^2 + 14706^2 .

It is a cyclic number.

It is not a de Polignac number, because 44135432197 - 2¹⁹ = 44134907909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44135432191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22067716098 + 22067716099.

It is an arithmetic number, because the mean of its divisors is an integer number (22067716099).

Almost surely, 2^44135432197 is an apocalyptic number.

It is an amenable number.

44135432197 is a deficient number, since it is larger than the sum of its proper divisors (1).

44135432197 is an equidigital number, since it uses as much as digits as its factorization.

44135432197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 43.

The spelling of 44135432197 in words is "forty-four billion, one hundred thirty-five million, four hundred thirty-two thousand, one hundred ninety-seven".