866827406416862 has 16 divisors (see below), whose sum is σ = 1501882779033072. Its totient is φ = 370835254081920.

The previous prime is 866827406416841. The next prime is 866827406416877. The reversal of 866827406416862 is 268614604728668.

It is a self number, because there is not a number n which added to its sum of digits gives 866827406416862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1158860168633 + ... + 1158860169380.

It is an arithmetic number, because the mean of its divisors is an integer number (93867673689567).

Almost surely, 2^{866827406416862} is an apocalyptic number.

866827406416862 is a deficient number, since it is larger than the sum of its proper divisors (635055372616210).

866827406416862 is a wasteful number, since it uses less digits than its factorization.

866827406416862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317720338043.

The product of its (nonzero) digits is 1783627776, while the sum is 74.

The spelling of 866827406416862 in words is "eight hundred sixty-six trillion, eight hundred twenty-seven billion, four hundred six million, four hundred sixteen thousand, eight hundred sixty-two".