80818012 has 24 divisors (see below), whose sum is σ = 159611760. Its totient is φ = 35468160.

The previous prime is 80818009. The next prime is 80818037. The reversal of 80818012 is 21081808.

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, 30393 + ... + 32944.

It is an arithmetic number, because the mean of its divisors is an integer number (6650490).

Almost surely, 2^80818012 is an apocalyptic number.

It is an amenable number.

80818012 is a deficient number, since it is larger than the sum of its proper divisors (78793748).

80818012 is a wasteful number, since it uses less digits than its factorization.

80818012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63381 (or 63379 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 28.

The square root of 80818012 is about 8989.8838702177. The cubic root of 80818012 is about 432.3505884606.

The spelling of 80818012 in words is "eighty million, eight hundred eighteen thousand, twelve".