680272272085 has 32 divisors (see below), whose sum is σ = 987979991040. Its totient is φ = 438963505152.

The previous prime is 680272272073. The next prime is 680272272091. The reversal of 680272272085 is 580272272086.

It is not a de Polignac number, because 680272272085 - 2⁷ = 680272271957 is a prime.

It is a congruent number.

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, 3821532 + ... + 3995578.

It is an arithmetic number, because the mean of its divisors is an integer number (30874374720).

Almost surely, 2^680272272085 is an apocalyptic number.

It is an amenable number.

680272272085 is a deficient number, since it is larger than the sum of its proper divisors (307707718955).

680272272085 is a wasteful number, since it uses less digits than its factorization.

680272272085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180645.

The product of its (nonzero) digits is 1505280, while the sum is 49.

Subtracting from 680272272085 its reverse (580272272086), we obtain a palindrome (99999999999).

The spelling of 680272272085 in words is "six hundred eighty billion, two hundred seventy-two million, two hundred seventy-two thousand, eighty-five".