3888666548545 has 8 divisors (see below), whose sum is σ = 4677483945960. Its totient is φ = 3103543847040.

The previous prime is 3888666548491. The next prime is 3888666548567. The reversal of 3888666548545 is 5458456668883.

It can be written as a sum of positive squares in 4 ways, for example, as 131520099649 + 3757146448896 = 362657^2 + 1938336^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3888666548545 - 2³³ = 3880076613953 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 923671660 + ... + 923675869.

It is an arithmetic number, because the mean of its divisors is an integer number (584685493245).

Almost surely, 2^{3888666548545} is an apocalyptic number.

It is an amenable number.

3888666548545 is a deficient number, since it is larger than the sum of its proper divisors (788817397415).

3888666548545 is a wasteful number, since it uses less digits than its factorization.

3888666548545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847347955.

The product of its digits is 5308416000, while the sum is 76.

The spelling of 3888666548545 in words is "three trillion, eight hundred eighty-eight billion, six hundred sixty-six million, five hundred forty-eight thousand, five hundred forty-five".