678479974876 has 12 divisors (see below), whose sum is σ = 1295279952120. Its totient is φ = 308399988560.

The previous prime is 678479974853. The next prime is 678479974877.

678479974876 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 678479974876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678479974877) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7709999671 + ... + 7709999758.

It is an arithmetic number, because the mean of its divisors is an integer number (107939996010).

Almost surely, 2^678479974876 is an apocalyptic number.

It is an amenable number.

678479974876 is a deficient number, since it is larger than the sum of its proper divisors (616799977244).

678479974876 is a wasteful number, since it uses less digits than its factorization.

678479974876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15419999444 (or 15419999442 counting only the distinct ones).

The product of its digits is 7169347584, while the sum is 82.

The spelling of 678479974876 in words is "six hundred seventy-eight billion, four hundred seventy-nine million, nine hundred seventy-four thousand, eight hundred seventy-six".