677680209860 has 24 divisors (see below), whose sum is σ = 1423230056640. Its totient is φ = 271052728544.

The previous prime is 677680209859. The next prime is 677680209889. The reversal of 677680209860 is 68902086776.

It is a self number, because there is not a number n which added to its sum of digits gives 677680209860.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920930 + ... + 1484409.

It is an arithmetic number, because the mean of its divisors is an integer number (59301252360).

Almost surely, 2^677680209860 is an apocalyptic number.

It is an amenable number.

677680209860 is an abundant number, since it is smaller than the sum of its proper divisors (745549846780).

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

677680209860 is a wasteful number, since it uses less digits than its factorization.

677680209860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419435 (or 2419433 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 59.

The spelling of 677680209860 in words is "six hundred seventy-seven billion, six hundred eighty million, two hundred nine thousand, eight hundred sixty".