1389899354808 has 32 divisors (see below), whose sum is σ = 3489287097600. Its totient is φ = 461361290208.

The previous prime is 1389899354807. The next prime is 1389899354863. The reversal of 1389899354808 is 8084539989831.

It is a self number, because there is not a number n which added to its sum of digits gives 1389899354808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389899354803) 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 7 ways as a sum of consecutive naturals, for example, 121150066 + ... + 121161537.

It is an arithmetic number, because the mean of its divisors is an integer number (109040221800).

Almost surely, 2^{1389899354808} is an apocalyptic number.

It is an amenable number.

1389899354808 is an abundant number, since it is smaller than the sum of its proper divisors (2099387742792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1389899354808 is a wasteful number, since it uses less digits than its factorization.

1389899354808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242311851 (or 242311847 counting only the distinct ones).

The product of its (nonzero) digits is 537477120, while the sum is 75.

The spelling of 1389899354808 in words is "one trillion, three hundred eighty-nine billion, eight hundred ninety-nine million, three hundred fifty-four thousand, eight hundred eight".