389061906512 has 40 divisors (see below), whose sum is σ = 793579862400. Its totient is φ = 184269641472.

The previous prime is 389061906469. The next prime is 389061906523. The reversal of 389061906512 is 215609160983.

It is a happy number.

It is a super-2 number, since 2×389061906512² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2517164 + ... + 2667252.

It is an arithmetic number, because the mean of its divisors is an integer number (19839496560).

Almost surely, 2^389061906512 is an apocalyptic number.

It is an amenable number.

389061906512 is an abundant number, since it is smaller than the sum of its proper divisors (404517955888).

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

389061906512 is a wasteful number, since it uses less digits than its factorization.

389061906512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158643 (or 158637 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 389061906512 in words is "three hundred eighty-nine billion, sixty-one million, nine hundred six thousand, five hundred twelve".