385355221727 has 16 divisors (see below), whose sum is σ = 452113788672. Its totient is φ = 321558118080.

The previous prime is 385355221703. The next prime is 385355221733. The reversal of 385355221727 is 727122553583.

It is a cyclic number.

It is not a de Polignac number, because 385355221727 - 2¹² = 385355217631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385355221777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1303553 + ... + 1571610.

It is an arithmetic number, because the mean of its divisors is an integer number (28257111792).

Almost surely, 2^385355221727 is an apocalyptic number.

385355221727 is a deficient number, since it is larger than the sum of its proper divisors (66758566945).

385355221727 is a wasteful number, since it uses less digits than its factorization.

385355221727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2875678.

The product of its digits is 3528000, while the sum is 50.

The spelling of 385355221727 in words is "three hundred eighty-five billion, three hundred fifty-five million, two hundred twenty-one thousand, seven hundred twenty-seven".