80509912 has 32 divisors (see below), whose sum is σ = 173779200. Its totient is φ = 34252704.

The previous prime is 80509879. The next prime is 80509939. The reversal of 80509912 is 21990508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2613 + ... + 12955.

It is an arithmetic number, because the mean of its divisors is an integer number (5430600).

Almost surely, 2^80509912 is an apocalyptic number.

It is an amenable number.

80509912 is an abundant number, since it is smaller than the sum of its proper divisors (93269288).

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

80509912 is a wasteful number, since it uses less digits than its factorization.

80509912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10495 (or 10491 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 80509912 is about 8972.7315796250. The cubic root of 80509912 is about 431.8004765637.

The spelling of 80509912 in words is "eighty million, five hundred nine thousand, nine hundred twelve".