389876215680 has 512 divisors, whose sum is σ = 1670906880000. Its totient is φ = 83872088064.

The previous prime is 389876215601. The next prime is 389876215721. The reversal of 389876215680 is 86512678983.

389876215680 is a `hidden beast` number, since 3 + 8 + 9 + 8 + 7 + 62 + 1 + 568 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1961521 + ... + 2151119.

It is an arithmetic number, because the mean of its divisors is an integer number (3263490000).

Almost surely, 2^389876215680 is an apocalyptic number.

389876215680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389876215680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (835453440000).

389876215680 is an abundant number, since it is smaller than the sum of its proper divisors (1281030664320).

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

389876215680 is a wasteful number, since it uses less digits than its factorization.

389876215680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189651 (or 189633 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 63.

The spelling of 389876215680 in words is "three hundred eighty-nine billion, eight hundred seventy-six million, two hundred fifteen thousand, six hundred eighty".