84404008880 has 20 divisors (see below), whose sum is σ = 196239320832. Its totient is φ = 33761603520.

The previous prime is 84404008879. The next prime is 84404008889. The reversal of 84404008880 is 8880040448.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (84404008889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527524976 + ... + 527525135.

Almost surely, 2^84404008880 is an apocalyptic number.

84404008880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84404008880 is an abundant number, since it is smaller than the sum of its proper divisors (111835311952).

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

84404008880 is a wasteful number, since it uses less digits than its factorization.

84404008880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055050124 (or 1055050118 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 44.

The spelling of 84404008880 in words is "eighty-four billion, four hundred four million, eight thousand, eight hundred eighty".