80881188 has 12 divisors (see below), whose sum is σ = 188722800. Its totient is φ = 26960392.

The previous prime is 80881169. The next prime is 80881211. The reversal of 80881188 is 88118808.

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

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

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, 3370038 + ... + 3370061.

It is an arithmetic number, because the mean of its divisors is an integer number (15726900).

Almost surely, 2^80881188 is an apocalyptic number.

It is an amenable number.

80881188 is an abundant number, since it is smaller than the sum of its proper divisors (107841612).

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

80881188 is a wasteful number, since it uses less digits than its factorization.

80881188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6740106 (or 6740104 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 42.

The square root of 80881188 is about 8993.3969110676. The cubic root of 80881188 is about 432.4632162687.

The spelling of 80881188 in words is "eighty million, eight hundred eighty-one thousand, one hundred eighty-eight".