678576747675876 has 96 divisors (see below), whose sum is σ = 1858783419386880. Its totient is φ = 188604686784384.

The previous prime is 678576747675797. The next prime is 678576747675919.

It is a happy number.

678576747675876 is nontrivially palindromic in base 10.

It is a Smith number, since the sum of its digits (96) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2868766 + ... + 36951093.

It is an arithmetic number, because the mean of its divisors is an integer number (19362327285280).

Almost surely, 2^{678576747675876} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 678576747675876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (929391709693440).

678576747675876 is an abundant number, since it is smaller than the sum of its proper divisors (1180206671711004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

678576747675876 is a wasteful number, since it uses less digits than its factorization.

678576747675876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39825393 (or 39825391 counting only the distinct ones).

The product of its digits is 975827865600, while the sum is 96.

The spelling of 678576747675876 in words is "six hundred seventy-eight trillion, five hundred seventy-six billion, seven hundred forty-seven million, six hundred seventy-five thousand, eight hundred seventy-six".