1389888976904 has 128 divisors (see below), whose sum is σ = 2980449561600. Its totient is φ = 603503861760.

The previous prime is 1389888976841. The next prime is 1389888976919. The reversal of 1389888976904 is 4096798889831.

It is an unprimeable number.

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, 64297202 + ... + 64318814.

It is an arithmetic number, because the mean of its divisors is an integer number (23284762200).

Almost surely, 2^{1389888976904} is an apocalyptic number.

It is an amenable number.

1389888976904 is an abundant number, since it is smaller than the sum of its proper divisors (1590560584696).

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

1389888976904 is a wasteful number, since it uses less digits than its factorization.

1389888976904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22303 (or 22299 counting only the distinct ones).

The product of its (nonzero) digits is 1504935936, while the sum is 80.

The spelling of 1389888976904 in words is "one trillion, three hundred eighty-nine billion, eight hundred eighty-eight million, nine hundred seventy-six thousand, nine hundred four".