384654438138 has 16 divisors (see below), whose sum is σ = 802757088576. Its totient is φ = 122643444000.

The previous prime is 384654438109. The next prime is 384654438149. The reversal of 384654438138 is 831834456483.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1393675363 + ... + 1393675638.

It is an arithmetic number, because the mean of its divisors is an integer number (50172318036).

Almost surely, 2^384654438138 is an apocalyptic number.

384654438138 is an abundant number, since it is smaller than the sum of its proper divisors (418102650438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

384654438138 is a wasteful number, since it uses less digits than its factorization.

384654438138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2787351029.

The product of its digits is 26542080, while the sum is 57.

The spelling of 384654438138 in words is "three hundred eighty-four billion, six hundred fifty-four million, four hundred thirty-eight thousand, one hundred thirty-eight".