680441470044 has 48 divisors (see below), whose sum is σ = 1839366912768. Its totient is φ = 191748670848.

The previous prime is 680441470039. The next prime is 680441470063. The reversal of 680441470044 is 440074144086.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 680441469978 and 680441470005.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 55476702 + ... + 55488965.

It is an arithmetic number, because the mean of its divisors is an integer number (38320144016).

Almost surely, 2^680441470044 is an apocalyptic number.

It is an amenable number.

680441470044 is an abundant number, since it is smaller than the sum of its proper divisors (1158925442724).

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

680441470044 is a wasteful number, since it uses less digits than its factorization.

680441470044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110965754 (or 110965752 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 42.

The spelling of 680441470044 in words is "six hundred eighty billion, four hundred forty-one million, four hundred seventy thousand, forty-four".