385820835238839 has 96 divisors (see below), whose sum is σ = 703422440904960. Its totient is φ = 184906815206400.

The previous prime is 385820835238801. The next prime is 385820835238841. The reversal of 385820835238839 is 938832538028583.

It is not a de Polignac number, because 385820835238839 - 2³⁷ = 385683396285367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385820835238939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 33001647 + ... + 43136415.

It is an arithmetic number, because the mean of its divisors is an integer number (7327317092760).

Almost surely, 2^{385820835238839} is an apocalyptic number.

385820835238839 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

385820835238839 is a deficient number, since it is larger than the sum of its proper divisors (317601605666121).

385820835238839 is a wasteful number, since it uses less digits than its factorization.

385820835238839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10136621 (or 10136614 counting only the distinct ones).

The product of its (nonzero) digits is 2388787200, while the sum is 75.

The spelling of 385820835238839 in words is "three hundred eighty-five trillion, eight hundred twenty billion, eight hundred thirty-five million, two hundred thirty-eight thousand, eight hundred thirty-nine".