866127542484812 has 12 divisors (see below), whose sum is σ = 1518387036258120. Its totient is φ = 432302674982496.

The previous prime is 866127542484791. The next prime is 866127542484847. The reversal of 866127542484812 is 218484245721668.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190274062418 + ... + 190274066969.

It is an arithmetic number, because the mean of its divisors is an integer number (126532253021510).

Almost surely, 2^{866127542484812} is an apocalyptic number.

It is an amenable number.

866127542484812 is a deficient number, since it is larger than the sum of its proper divisors (652259493773308).

866127542484812 is a wasteful number, since it uses less digits than its factorization.

866127542484812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380548129960 (or 380548129958 counting only the distinct ones).

The product of its digits is 330301440, while the sum is 68.

The spelling of 866127542484812 in words is "eight hundred sixty-six trillion, one hundred twenty-seven billion, five hundred forty-two million, four hundred eighty-four thousand, eight hundred twelve".