868688134 has 16 divisors (see below), whose sum is σ = 1380438288. Its totient is φ = 408570112.

The previous prime is 868688131. The next prime is 868688141. The reversal of 868688134 is 431886868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868688131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67269 + ... + 79135.

It is an arithmetic number, because the mean of its divisors is an integer number (86277393).

Almost surely, 2^868688134 is an apocalyptic number.

868688134 is a deficient number, since it is larger than the sum of its proper divisors (511750154).

868688134 is a wasteful number, since it uses less digits than its factorization.

868688134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14039.

The product of its digits is 1769472, while the sum is 52.

The square root of 868688134 is about 29473.5158065678. The cubic root of 868688134 is about 954.1601980946.

The spelling of 868688134 in words is "eight hundred sixty-eight million, six hundred eighty-eight thousand, one hundred thirty-four".