3138150017868 has 12 divisors (see below), whose sum is σ = 7322350041720. Its totient is φ = 1046050005952.

The previous prime is 3138150017837. The next prime is 3138150017869. The reversal of 3138150017868 is 8687100518313.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 3138150017868.

It is not an unprimeable number, because it can be changed into a prime (3138150017869) 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 3 ways as a sum of consecutive naturals, for example, 130756250733 + ... + 130756250756.

It is an arithmetic number, because the mean of its divisors is an integer number (610195836810).

Almost surely, 2^{3138150017868} is an apocalyptic number.

It is an amenable number.

3138150017868 is an abundant number, since it is smaller than the sum of its proper divisors (4184200023852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3138150017868 is a wasteful number, since it uses less digits than its factorization.

3138150017868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261512501496 (or 261512501494 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 3138150017868 in words is "three trillion, one hundred thirty-eight billion, one hundred fifty million, seventeen thousand, eight hundred sixty-eight".