38434432109 has 2 divisors, whose sum is σ = 38434432110. Its totient is φ = 38434432108.

The previous prime is 38434432103. The next prime is 38434432117. The reversal of 38434432109 is 90123443483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34193557225 + 4240874884 = 184915^2 + 65122^2 .

It is a cyclic number.

It is not a de Polignac number, because 38434432109 - 2⁸ = 38434431853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38434432103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19217216054 + 19217216055.

It is an arithmetic number, because the mean of its divisors is an integer number (19217216055).

Almost surely, 2^38434432109 is an apocalyptic number.

It is an amenable number.

38434432109 is a deficient number, since it is larger than the sum of its proper divisors (1).

38434432109 is an equidigital number, since it uses as much as digits as its factorization.

38434432109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 38434432109 in words is "thirty-eight billion, four hundred thirty-four million, four hundred thirty-two thousand, one hundred nine".