3864673655547 has 16 divisors (see below), whose sum is σ = 5199972100128. Its totient is φ = 2552925079040.

The previous prime is 3864673655509. The next prime is 3864673655597. The reversal of 3864673655547 is 7455563764683.

It is a cyclic number.

It is not a de Polignac number, because 3864673655547 - 2⁶ = 3864673655483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3864673655597) by changing a digit.

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, 415704 + ... + 2811077.

It is an arithmetic number, because the mean of its divisors is an integer number (324998256258).

Almost surely, 2^{3864673655547} is an apocalyptic number.

3864673655547 is a deficient number, since it is larger than the sum of its proper divisors (1335298444581).

3864673655547 is a wasteful number, since it uses less digits than its factorization.

3864673655547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3230430.

The product of its digits is 1524096000, while the sum is 69.

The spelling of 3864673655547 in words is "three trillion, eight hundred sixty-four billion, six hundred seventy-three million, six hundred fifty-five thousand, five hundred forty-seven".