389149133652 has 144 divisors (see below), whose sum is σ = 1056987247680. Its totient is φ = 125110821888.

The previous prime is 389149133621. The next prime is 389149133701. The reversal of 389149133652 is 256331941983.

389149133652 is a `hidden beast` number, since 3 + 8 + 91 + 491 + 3 + 3 + 65 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2975428 + ... + 3103460.

It is an arithmetic number, because the mean of its divisors is an integer number (7340189220).

Almost surely, 2^389149133652 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 389149133652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (528493623840).

389149133652 is an abundant number, since it is smaller than the sum of its proper divisors (667838114028).

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

389149133652 is a wasteful number, since it uses less digits than its factorization.

389149133652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128164 (or 128150 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The spelling of 389149133652 in words is "three hundred eighty-nine billion, one hundred forty-nine million, one hundred thirty-three thousand, six hundred fifty-two".