389318626856 has 16 divisors (see below), whose sum is σ = 730043733600. Its totient is φ = 194640297904.

The previous prime is 389318626819. The next prime is 389318626877. The reversal of 389318626856 is 658626813983.

It is a junction number, because it is equal to n+sod(n) for n = 389318626792 and 389318626801.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2289740 + ... + 2453883.

It is an arithmetic number, because the mean of its divisors is an integer number (45627733350).

Almost surely, 2^389318626856 is an apocalyptic number.

It is an amenable number.

389318626856 is a deficient number, since it is larger than the sum of its proper divisors (340725106744).

389318626856 is a wasteful number, since it uses less digits than its factorization.

389318626856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4753888 (or 4753884 counting only the distinct ones).

The product of its digits is 89579520, while the sum is 65.

The spelling of 389318626856 in words is "three hundred eighty-nine billion, three hundred eighteen million, six hundred twenty-six thousand, eight hundred fifty-six".