680435078445 has 24 divisors (see below), whose sum is σ = 1180875145632. Its totient is φ = 362451218400.

The previous prime is 680435078423. The next prime is 680435078447. The reversal of 680435078445 is 544870534086.

It is a happy number.

680435078445 is a `hidden beast` number, since 6 + 80 + 4 + 3 + 50 + 78 + 445 = 666.

It is not a de Polignac number, because 680435078445 - 2⁸ = 680435078189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 680435078391 and 680435078400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680435078447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9285811 + ... + 9358800.

It is an arithmetic number, because the mean of its divisors is an integer number (49203131068).

Almost surely, 2^680435078445 is an apocalyptic number.

It is an amenable number.

680435078445 is a deficient number, since it is larger than the sum of its proper divisors (500440067187).

680435078445 is a wasteful number, since it uses less digits than its factorization.

680435078445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18645433 (or 18645430 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 54.

The spelling of 680435078445 in words is "six hundred eighty billion, four hundred thirty-five million, seventy-eight thousand, four hundred forty-five".