78282116684 has 12 divisors (see below), whose sum is σ = 137016758424. Its totient is φ = 39134471424.

The previous prime is 78282116677. The next prime is 78282116687. The reversal of 78282116684 is 48661128287.

It is a super-2 number, since 2×78282116684² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78282116687) by changing a digit.

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, 1619942 + ... + 1667565.

It is an arithmetic number, because the mean of its divisors is an integer number (11418063202).

Almost surely, 2^78282116684 is an apocalyptic number.

It is an amenable number.

78282116684 is a deficient number, since it is larger than the sum of its proper divisors (58734641740).

78282116684 is a wasteful number, since it uses less digits than its factorization.

78282116684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3293464 (or 3293462 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 53.

The spelling of 78282116684 in words is "seventy-eight billion, two hundred eighty-two million, one hundred sixteen thousand, six hundred eighty-four".