1389122097909 has 32 divisors (see below), whose sum is σ = 2296224349440. Its totient is φ = 727375375872.

The previous prime is 1389122097907. The next prime is 1389122097917. The reversal of 1389122097909 is 9097902219831.

It is not a de Polignac number, because 1389122097909 - 2¹ = 1389122097907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389122097901) 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 in 31 ways as a sum of consecutive naturals, for example, 18533254 + ... + 18608055.

It is an arithmetic number, because the mean of its divisors is an integer number (71757010920).

Almost surely, 2^{1389122097909} is an apocalyptic number.

It is an amenable number.

1389122097909 is a deficient number, since it is larger than the sum of its proper divisors (907102251531).

1389122097909 is a wasteful number, since it uses less digits than its factorization.

1389122097909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37141469.

The product of its (nonzero) digits is 4408992, while the sum is 60.

The spelling of 1389122097909 in words is "one trillion, three hundred eighty-nine billion, one hundred twenty-two million, ninety-seven thousand, nine hundred nine".