385783453528 has 64 divisors (see below), whose sum is σ = 809858891520. Its totient is φ = 170803113600.

The previous prime is 385783453511. The next prime is 385783453579. The reversal of 385783453528 is 825354387583.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146626 + ... + 890542.

It is an arithmetic number, because the mean of its divisors is an integer number (12654045180).

Almost surely, 2^385783453528 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 385783453528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404929445760).

385783453528 is an abundant number, since it is smaller than the sum of its proper divisors (424075437992).

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

385783453528 is a wasteful number, since it uses less digits than its factorization.

385783453528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744088 (or 744084 counting only the distinct ones).

The product of its digits is 96768000, while the sum is 61.

The spelling of 385783453528 in words is "three hundred eighty-five billion, seven hundred eighty-three million, four hundred fifty-three thousand, five hundred twenty-eight".