385805731882 has 16 divisors (see below), whose sum is σ = 581237656200. Its totient is φ = 192061658880.

The previous prime is 385805731873. The next prime is 385805731901. The reversal of 385805731882 is 288137508583.

It can be written as a sum of positive squares in 4 ways, for example, as 266380886641 + 119424845241 = 516121^2 + 345579^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26457 + ... + 878812.

Almost surely, 2^385805731882 is an apocalyptic number.

385805731882 is a deficient number, since it is larger than the sum of its proper divisors (195431924318).

385805731882 is a wasteful number, since it uses less digits than its factorization.

385805731882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906201.

The product of its (nonzero) digits is 12902400, while the sum is 58.

The spelling of 385805731882 in words is "three hundred eighty-five billion, eight hundred five million, seven hundred thirty-one thousand, eight hundred eighty-two".