385423858885 has 16 divisors (see below), whose sum is σ = 500838090480. Its totient is φ = 283048197120.

The previous prime is 385423858877. The next prime is 385423858927. The reversal of 385423858885 is 588858324583.

It can be written as a sum of positive squares in 8 ways, for example, as 36717074689 + 348706784196 = 191617^2 + 590514^2 .

It is not a de Polignac number, because 385423858885 - 2³ = 385423858877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 385423858885.

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, 16368340 + ... + 16391869.

It is an arithmetic number, because the mean of its divisors is an integer number (31302380655).

Almost surely, 2^385423858885 is an apocalyptic number.

It is an amenable number.

385423858885 is a deficient number, since it is larger than the sum of its proper divisors (115414231595).

385423858885 is a wasteful number, since it uses less digits than its factorization.

385423858885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32760408.

The product of its digits is 294912000, while the sum is 67.

The spelling of 385423858885 in words is "three hundred eighty-five billion, four hundred twenty-three million, eight hundred fifty-eight thousand, eight hundred eighty-five".