385065869121 has 48 divisors (see below), whose sum is σ = 570589935552. Its totient is φ = 250142256000.

The previous prime is 385065869113. The next prime is 385065869171. The reversal of 385065869121 is 121968560583.

385065869121 is a `hidden beast` number, since 3 + 8 + 50 + 6 + 586 + 9 + 1 + 2 + 1 = 666.

It is not a de Polignac number, because 385065869121 - 2³ = 385065869113 is a prime.

It is a super-2 number, since 2×385065869121² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (385065869171) 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 47 ways as a sum of consecutive naturals, for example, 76233046 + ... + 76238096.

It is an arithmetic number, because the mean of its divisors is an integer number (11887290324).

Almost surely, 2^385065869121 is an apocalyptic number.

It is an amenable number.

385065869121 is a deficient number, since it is larger than the sum of its proper divisors (185524066431).

385065869121 is a wasteful number, since it uses less digits than its factorization.

385065869121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6174 (or 6171 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 54.

The spelling of 385065869121 in words is "three hundred eighty-five billion, sixty-five million, eight hundred sixty-nine thousand, one hundred twenty-one".