816927910814 has 12 divisors (see below), whose sum is σ = 1280986205856. Its totient is φ = 390704652492.

The previous prime is 816927910769. The next prime is 816927910853. The reversal of 816927910814 is 418019729618.

It is a super-2 number, since 2×816927910814² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 816927910814.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 386070734 + ... + 386072849.

It is an arithmetic number, because the mean of its divisors is an integer number (106748850488).

Almost surely, 2^816927910814 is an apocalyptic number.

816927910814 is a deficient number, since it is larger than the sum of its proper divisors (464058295042).

816927910814 is a wasteful number, since it uses less digits than its factorization.

816927910814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772143631 (or 772143608 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 56.

The spelling of 816927910814 in words is "eight hundred sixteen billion, nine hundred twenty-seven million, nine hundred ten thousand, eight hundred fourteen".