384434389688 has 8 divisors (see below), whose sum is σ = 720814480680. Its totient is φ = 192217194840.

The previous prime is 384434389681. The next prime is 384434389697. The reversal of 384434389688 is 886983434483.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384434389681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24027149348 + ... + 24027149363.

It is an arithmetic number, because the mean of its divisors is an integer number (90101810085).

Almost surely, 2^384434389688 is an apocalyptic number.

It is an amenable number.

384434389688 is a deficient number, since it is larger than the sum of its proper divisors (336380090992).

384434389688 is a wasteful number, since it uses less digits than its factorization.

384434389688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48054298717 (or 48054298713 counting only the distinct ones).

The product of its digits is 382205952, while the sum is 68.

The spelling of 384434389688 in words is "three hundred eighty-four billion, four hundred thirty-four million, three hundred eighty-nine thousand, six hundred eighty-eight".