384013756835545 has 4 divisors (see below), whose sum is σ = 460816508202660. Its totient is φ = 307211005468432.

The previous prime is 384013756835431. The next prime is 384013756835561. The reversal of 384013756835545 is 545538657310483.

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 74325279106521 + 309688477729024 = 8621211^2 + 17597968^2 .

It is a cyclic number.

It is not a de Polignac number, because 384013756835545 - 2¹⁵ = 384013756802777 is a prime.

It is a super-3 number, since 3×384013756835545³ (a number of 45 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 3 ways as a sum of consecutive naturals, for example, 38401375683550 + ... + 38401375683559.

It is an arithmetic number, because the mean of its divisors is an integer number (115204127050665).

Almost surely, 2^{384013756835545} is an apocalyptic number.

It is an amenable number.

384013756835545 is a deficient number, since it is larger than the sum of its proper divisors (76802751367115).

384013756835545 is an equidigital number, since it uses as much as digits as its factorization.

384013756835545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76802751367114.

The product of its (nonzero) digits is 725760000, while the sum is 67.

The spelling of 384013756835545 in words is "three hundred eighty-four trillion, thirteen billion, seven hundred fifty-six million, eight hundred thirty-five thousand, five hundred forty-five".