1389776994606 has 1024 divisors, whose sum is σ = 4277250883584. Its totient is φ = 291451944960.

The previous prime is 1389776994553. The next prime is 1389776994631. The reversal of 1389776994606 is 6064996779831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 19038040986 + ... + 19038041058.

It is an arithmetic number, because the mean of its divisors is an integer number (4177002816).

Almost surely, 2^{1389776994606} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1389776994606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2138625441792).

1389776994606 is an abundant number, since it is smaller than the sum of its proper divisors (2887473888978).

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

1389776994606 is a wasteful number, since it uses less digits than its factorization.

1389776994606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 740710656, while the sum is 75.

The spelling of 1389776994606 in words is "one trillion, three hundred eighty-nine billion, seven hundred seventy-six million, nine hundred ninety-four thousand, six hundred six".