389163868900 has 27 divisors (see below), whose sum is σ = 844499132841. Its totient is φ = 155663052240.

The previous prime is 389163868883. The next prime is 389163868903. The reversal of 389163868900 is 9868361983.

The square root of 389163868900 is 623830.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 140098992804 + 249064876096 = 374298^2 + 499064^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389163868903) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6207109 + ... + 6269491.

Almost surely, 2^389163868900 is an apocalyptic number.

389163868900 is the 623830-th square number.

It is an amenable number.

389163868900 is an abundant number, since it is smaller than the sum of its proper divisors (455335263941).

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

389163868900 is an frugal number, since it uses more digits than its factorization.

389163868900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124780 (or 62390 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 61.

The spelling of 389163868900 in words is "three hundred eighty-nine billion, one hundred sixty-three million, eight hundred sixty-eight thousand, nine hundred".