384479100385 has 4 divisors (see below), whose sum is σ = 461374920468. Its totient is φ = 307583280304.

The previous prime is 384479100359. The next prime is 384479100389. The reversal of 384479100385 is 583001974483.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 84130162704 + 300348937681 = 290052^2 + 548041^2 .

It is a cyclic number.

It is not a de Polignac number, because 384479100385 - 2¹¹ = 384479098337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (384479100389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38447910034 + ... + 38447910043.

It is an arithmetic number, because the mean of its divisors is an integer number (115343730117).

Almost surely, 2^384479100385 is an apocalyptic number.

It is an amenable number.

384479100385 is a deficient number, since it is larger than the sum of its proper divisors (76895820083).

384479100385 is an equidigital number, since it uses as much as digits as its factorization.

384479100385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76895820082.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 384479100385 in words is "three hundred eighty-four billion, four hundred seventy-nine million, one hundred thousand, three hundred eighty-five".