3871137686 has 16 divisors (see below), whose sum is σ = 6341455008. Its totient is φ = 1761513600.

The previous prime is 3871137671. The next prime is 3871137689. The reversal of 3871137686 is 6867311783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871137689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1046675 + ... + 1050366.

It is an arithmetic number, because the mean of its divisors is an integer number (396340938).

Almost surely, 2^3871137686 is an apocalyptic number.

3871137686 is a deficient number, since it is larger than the sum of its proper divisors (2470317322).

3871137686 is a wasteful number, since it uses less digits than its factorization.

3871137686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097127.

The product of its digits is 1016064, while the sum is 50.

The square root of 3871137686 is about 62218.4674031754. The cubic root of 3871137686 is about 1570.1683033226.

The spelling of 3871137686 in words is "three billion, eight hundred seventy-one million, one hundred thirty-seven thousand, six hundred eighty-six".