384969646081 has 16 divisors (see below), whose sum is σ = 399155936256. Its totient is φ = 371032328016.

The previous prime is 384969646079. The next prime is 384969646177. The reversal of 384969646081 is 180646969483.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 384969646081 - 2¹ = 384969646079 is a prime.

It is a super-2 number, since 2×384969646081² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (384969646381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2871756 + ... + 3002818.

It is an arithmetic number, because the mean of its divisors is an integer number (24947246016).

Almost surely, 2^384969646081 is an apocalyptic number.

It is an amenable number.

384969646081 is a deficient number, since it is larger than the sum of its proper divisors (14186290175).

384969646081 is a wasteful number, since it uses less digits than its factorization.

384969646081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132012.

The product of its (nonzero) digits is 53747712, while the sum is 64.

The spelling of 384969646081 in words is "three hundred eighty-four billion, nine hundred sixty-nine million, six hundred forty-six thousand, eighty-one".