866827866224134 has 4 divisors (see below), whose sum is σ = 1300241799336204. Its totient is φ = 433413933112066.

The previous prime is 866827866224093. The next prime is 866827866224149. The reversal of 866827866224134 is 431422668728668.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216706966556032 + ... + 216706966556035.

It is an arithmetic number, because the mean of its divisors is an integer number (325060449834051).

Almost surely, 2^{866827866224134} is an apocalyptic number.

866827866224134 is a deficient number, since it is larger than the sum of its proper divisors (433413933112070).

866827866224134 is a wasteful number, since it uses less digits than its factorization.

866827866224134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433413933112069.

The product of its digits is 1783627776, while the sum is 73.

The spelling of 866827866224134 in words is "eight hundred sixty-six trillion, eight hundred twenty-seven billion, eight hundred sixty-six million, two hundred twenty-four thousand, one hundred thirty-four".