84091808880 has 100 divisors (see below), whose sum is σ = 292063332792. Its totient is φ = 22424480640.

The previous prime is 84091808873. The next prime is 84091808893. The reversal of 84091808880 is 8880819048.

84091808880 is a `hidden beast` number, since 8 + 409 + 1 + 80 + 88 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6482086 + ... + 6495045.

Almost surely, 2^84091808880 is an apocalyptic number.

84091808880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84091808880 is an abundant number, since it is smaller than the sum of its proper divisors (207971523912).

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

84091808880 is a wasteful number, since it uses less digits than its factorization.

84091808880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12977156 (or 12977141 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 54.

The spelling of 84091808880 in words is "eighty-four billion, ninety-one million, eight hundred eight thousand, eight hundred eighty".