3138568686671 has 16 divisors (see below), whose sum is σ = 3494299743648. Its totient is φ = 2794751232000.

The previous prime is 3138568686637. The next prime is 3138568686713. The reversal of 3138568686671 is 1766868658313.

It is a cyclic number.

It is not a de Polignac number, because 3138568686671 - 2¹⁴ = 3138568670287 is a prime.

It is a super-2 number, since 2×3138568686671² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138568686271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4128386 + ... + 4829151.

It is an arithmetic number, because the mean of its divisors is an integer number (218393733978).

Almost surely, 2^{3138568686671} is an apocalyptic number.

3138568686671 is a deficient number, since it is larger than the sum of its proper divisors (355731056977).

3138568686671 is a wasteful number, since it uses less digits than its factorization.

3138568686671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8958202.

The product of its digits is 209018880, while the sum is 68.

The spelling of 3138568686671 in words is "three trillion, one hundred thirty-eight billion, five hundred sixty-eight million, six hundred eighty-six thousand, six hundred seventy-one".