1980579108 has 12 divisors (see below), whose sum is σ = 4621351280. Its totient is φ = 660193032.

The previous prime is 1980579091. The next prime is 1980579113. The reversal of 1980579108 is 8019750891.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82524118 + ... + 82524141.

Almost surely, 2^1980579108 is an apocalyptic number.

It is an amenable number.

1980579108 is an abundant number, since it is smaller than the sum of its proper divisors (2640772172).

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

1980579108 is a wasteful number, since it uses less digits than its factorization.

1980579108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165048266 (or 165048264 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 48.

The square root of 1980579108 is about 44503.6976890685. The cubic root of 1980579108 is about 1255.8296462872.

The spelling of 1980579108 in words is "one billion, nine hundred eighty million, five hundred seventy-nine thousand, one hundred eight".