680820271998 has 32 divisors (see below), whose sum is σ = 1488244700160. Its totient is φ = 206700650880.

The previous prime is 680820271997. The next prime is 680820272017. The reversal of 680820271998 is 899172028086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680820271997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107653428 + ... + 107659751.

It is an arithmetic number, because the mean of its divisors is an integer number (46507646880).

Almost surely, 2^680820271998 is an apocalyptic number.

680820271998 is an abundant number, since it is smaller than the sum of its proper divisors (807424428162).

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

680820271998 is a wasteful number, since it uses less digits than its factorization.

680820271998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215313232.

The product of its (nonzero) digits is 6967296, while the sum is 60.

The spelling of 680820271998 in words is "six hundred eighty billion, eight hundred twenty million, two hundred seventy-one thousand, nine hundred ninety-eight".