78282116756 has 12 divisors (see below), whose sum is σ = 137116356468. Its totient is φ = 39106014912.

The previous prime is 78282116741. The next prime is 78282116767. The reversal of 78282116756 is 65761128287.

It can be written as a sum of positive squares in 2 ways, for example, as 5781169156 + 72500947600 = 76034^2 + 269260^2 .

It is a super-2 number, since 2×78282116756² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78282116698 and 78282116707.

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 3 ways as a sum of consecutive naturals, for example, 8755841 + ... + 8764776.

It is an arithmetic number, because the mean of its divisors is an integer number (11426363039).

Almost surely, 2^78282116756 is an apocalyptic number.

It is an amenable number.

78282116756 is a deficient number, since it is larger than the sum of its proper divisors (58834239712).

78282116756 is a wasteful number, since it uses less digits than its factorization.

78282116756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17521738 (or 17521736 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 53.

The spelling of 78282116756 in words is "seventy-eight billion, two hundred eighty-two million, one hundred sixteen thousand, seven hundred fifty-six".