80535818 has 16 divisors (see below), whose sum is σ = 134852256. Its totient is φ = 35755440.

The previous prime is 80535761. The next prime is 80535823. The reversal of 80535818 is 81853508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41621 + ... + 43512.

It is an arithmetic number, because the mean of its divisors is an integer number (8428266).

Almost surely, 2^80535818 is an apocalyptic number.

80535818 is a deficient number, since it is larger than the sum of its proper divisors (54316438).

80535818 is a wasteful number, since it uses less digits than its factorization.

80535818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85189.

The product of its (nonzero) digits is 38400, while the sum is 38.

The square root of 80535818 is about 8974.1750595807. The cubic root of 80535818 is about 431.8467856590.

The spelling of 80535818 in words is "eighty million, five hundred thirty-five thousand, eight hundred eighteen".