389162185776 has 1120 divisors, whose sum is σ = 1524980172800. Its totient is φ = 94097687040.

The previous prime is 389162185679. The next prime is 389162185787. The reversal of 389162185776 is 677581261983.

389162185776 is a `hidden beast` number, since 38 + 9 + 1 + 6 + 21 + 8 + 577 + 6 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 12553618881 + ... + 12553618911.

It is an arithmetic number, because the mean of its divisors is an integer number (1361589440).

Almost surely, 2^389162185776 is an apocalyptic number.

389162185776 is a gapful number since it is divisible by the number (36) 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 389162185776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (762490086400).

389162185776 is an abundant number, since it is smaller than the sum of its proper divisors (1135817987024).

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

389162185776 is an equidigital number, since it uses as much as digits as its factorization.

389162185776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 75 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 63.

The spelling of 389162185776 in words is "three hundred eighty-nine billion, one hundred sixty-two million, one hundred eighty-five thousand, seven hundred seventy-six".