816648318862 has 16 divisors (see below), whose sum is σ = 1251096932160. Its totient is φ = 399616858368.

The previous prime is 816648318641. The next prime is 816648318877. The reversal of 816648318862 is 268813846618.

It is a self number, because there is not a number n which added to its sum of digits gives 816648318862.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1821958 + ... + 2225494.

It is an arithmetic number, because the mean of its divisors is an integer number (78193558260).

Almost surely, 2^816648318862 is an apocalyptic number.

816648318862 is a deficient number, since it is larger than the sum of its proper divisors (434448613298).

816648318862 is a wasteful number, since it uses less digits than its factorization.

816648318862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425115.

The product of its digits is 21233664, while the sum is 61.

The spelling of 816648318862 in words is "eight hundred sixteen billion, six hundred forty-eight million, three hundred eighteen thousand, eight hundred sixty-two".