1389823517099 has 4 divisors (see below), whose sum is σ = 1389834920520. Its totient is φ = 1389812113680.

The previous prime is 1389823516979. The next prime is 1389823517101. The reversal of 1389823517099 is 9907153289831.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1389823517099 - 2¹⁶ = 1389823451563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1389823510099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5516897 + ... + 5763314.

It is an arithmetic number, because the mean of its divisors is an integer number (347458730130).

Almost surely, 2^{1389823517099} is an apocalyptic number.

1389823517099 is a deficient number, since it is larger than the sum of its proper divisors (11403421).

1389823517099 is a wasteful number, since it uses less digits than its factorization.

1389823517099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11403420.

The product of its (nonzero) digits is 29393280, while the sum is 65.

The spelling of 1389823517099 in words is "one trillion, three hundred eighty-nine billion, eight hundred twenty-three million, five hundred seventeen thousand, ninety-nine".