389726650368 has 540 divisors, whose sum is σ = 1284915963240. Its totient is φ = 117953003520.

The previous prime is 389726650363. The next prime is 389726650387. The reversal of 389726650368 is 863056627983.

389726650368 is a `hidden beast` number, since 3 + 8 + 9 + 7 + 2 + 66 + 503 + 68 = 666.

It is a super-2 number, since 2×389726650368² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (389726650363) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 481738348 + ... + 481739156.

It is an arithmetic number, because the mean of its divisors is an integer number (2379474006).

Almost surely, 2^389726650368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389726650368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (642457981620).

389726650368 is an abundant number, since it is smaller than the sum of its proper divisors (895189312872).

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

389726650368 is an frugal number, since it uses more digits than its factorization.

389726650368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 63.

The spelling of 389726650368 in words is "three hundred eighty-nine billion, seven hundred twenty-six million, six hundred fifty thousand, three hundred sixty-eight".