680477774444 has 24 divisors (see below), whose sum is σ = 1282500817920. Its totient is φ = 314051497344.

The previous prime is 680477774441. The next prime is 680477774461. The reversal of 680477774444 is 444477774086.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (680477774441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 809237 + ... + 1419795.

It is an arithmetic number, because the mean of its divisors is an integer number (53437534080).

Almost surely, 2^680477774444 is an apocalyptic number.

It is an amenable number.

680477774444 is a deficient number, since it is larger than the sum of its proper divisors (602023043476).

680477774444 is a wasteful number, since it uses less digits than its factorization.

680477774444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632009 (or 632007 counting only the distinct ones).

The product of its (nonzero) digits is 118013952, while the sum is 62.

The spelling of 680477774444 in words is "six hundred eighty billion, four hundred seventy-seven million, seven hundred seventy-four thousand, four hundred forty-four".