678568585865876 has 96 divisors (see below), whose sum is σ = 1286462372966400. Its totient is φ = 312160208227200.

The previous prime is 678568585865873. The next prime is 678568585865909.

678568585865876 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×678568585865876² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678568585865873) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 488516870 + ... + 489903938.

It is an arithmetic number, because the mean of its divisors is an integer number (13400649718400).

Almost surely, 2^{678568585865876} is an apocalyptic number.

It is an amenable number.

678568585865876 is a deficient number, since it is larger than the sum of its proper divisors (607893787100524).

678568585865876 is a wasteful number, since it uses less digits than its factorization.

678568585865876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388197 (or 1388195 counting only the distinct ones).

The product of its digits is 1300561920000, while the sum is 98.

The spelling of 678568585865876 in words is "six hundred seventy-eight trillion, five hundred sixty-eight billion, five hundred eighty-five million, eight hundred sixty-five thousand, eight hundred seventy-six".