866788526376834 has 128 divisors (see below), whose sum is σ = 1866317759336448. Its totient is φ = 267714912326400.

The previous prime is 866788526376833. The next prime is 866788526376907. The reversal of 866788526376834 is 438673625887668.

866788526376834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (866788526376833) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 548479804 + ... + 550057880.

It is an arithmetic number, because the mean of its divisors is an integer number (14580607494816).

Almost surely, 2^{866788526376834} is an apocalyptic number.

866788526376834 is an abundant number, since it is smaller than the sum of its proper divisors (999529232959614).

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

866788526376834 is a wasteful number, since it uses less digits than its factorization.

866788526376834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578912.

The product of its digits is 93640458240, while the sum is 87.

The spelling of 866788526376834 in words is "eight hundred sixty-six trillion, seven hundred eighty-eight billion, five hundred twenty-six million, three hundred seventy-six thousand, eight hundred thirty-four".