384172704845 has 16 divisors (see below), whose sum is σ = 462354635520. Its totient is φ = 306440141184.

The previous prime is 384172704827. The next prime is 384172704899. The reversal of 384172704845 is 548407271483.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 384172704845 - 2¹⁴ = 384172688461 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25278569 + ... + 25293761.

It is an arithmetic number, because the mean of its divisors is an integer number (28897164720).

Almost surely, 2^384172704845 is an apocalyptic number.

It is an amenable number.

384172704845 is a deficient number, since it is larger than the sum of its proper divisors (78181930675).

384172704845 is a wasteful number, since it uses less digits than its factorization.

384172704845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29644.

The product of its (nonzero) digits is 6021120, while the sum is 53.

The spelling of 384172704845 in words is "three hundred eighty-four billion, one hundred seventy-two million, seven hundred four thousand, eight hundred forty-five".