384205534684678 has 16 divisors (see below), whose sum is σ = 658759736674080. Its totient is φ = 164629095561216.

The previous prime is 384205534684663. The next prime is 384205534684721. The reversal of 384205534684678 is 876486435502483.

It is a super-2 number, since 2×384205534684678² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 384205534684678.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2534863483 + ... + 2535015046.

It is an arithmetic number, because the mean of its divisors is an integer number (41172483542130).

Almost surely, 2^{384205534684678} is an apocalyptic number.

384205534684678 is a deficient number, since it is larger than the sum of its proper divisors (274554201989402).

384205534684678 is a wasteful number, since it uses less digits than its factorization.

384205534684678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5069883951.

The product of its (nonzero) digits is 3715891200, while the sum is 73.

The spelling of 384205534684678 in words is "three hundred eighty-four trillion, two hundred five billion, five hundred thirty-four million, six hundred eighty-four thousand, six hundred seventy-eight".