678769363967876 has 12 divisors (see below), whose sum is σ = 1187848039004172. Its totient is φ = 339384209966688.

The previous prime is 678769363967831. The next prime is 678769363967887.

678769363967876 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 2970796960000 + 675798567007876 = 1723600^2 + 25996126^2 .

It is a super-2 number, since 2×678769363967876² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114758855 + ... + 120528558.

It is an arithmetic number, because the mean of its divisors is an integer number (98987336583681).

Almost surely, 2^{678769363967876} is an apocalyptic number.

It is an amenable number.

678769363967876 is a deficient number, since it is larger than the sum of its proper divisors (509078675036296).

678769363967876 is a wasteful number, since it uses less digits than its factorization.

678769363967876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236008630 (or 236008628 counting only the distinct ones).

The product of its digits is 871075731456, while the sum is 98.

The spelling of 678769363967876 in words is "six hundred seventy-eight trillion, seven hundred sixty-nine billion, three hundred sixty-three million, nine hundred sixty-seven thousand, eight hundred seventy-six".