385081816835 has 16 divisors (see below), whose sum is σ = 473409099072. Its totient is φ = 300526118400.

The previous prime is 385081816793. The next prime is 385081816841. The reversal of 385081816835 is 538618180583.

It is a happy number.

It is not a de Polignac number, because 385081816835 - 2⁶ = 385081816771 is a prime.

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, 2548727 + ... + 2695583.

It is an arithmetic number, because the mean of its divisors is an integer number (29588068692).

Almost surely, 2^385081816835 is an apocalyptic number.

385081816835 is a deficient number, since it is larger than the sum of its proper divisors (88327282237).

385081816835 is a wasteful number, since it uses less digits than its factorization.

385081816835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159694.

The product of its (nonzero) digits is 5529600, while the sum is 56.

The spelling of 385081816835 in words is "three hundred eighty-five billion, eighty-one million, eight hundred sixteen thousand, eight hundred thirty-five".