84001328880 has 160 divisors (see below), whose sum is σ = 315110974464. Its totient is φ = 18070867968.

The previous prime is 84001328867. The next prime is 84001328891. The reversal of 84001328880 is 8882310048.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1442052 + ... + 1499171.

Almost surely, 2^84001328880 is an apocalyptic number.

84001328880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84001328880 is an abundant number, since it is smaller than the sum of its proper divisors (231109645584).

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

84001328880 is a wasteful number, since it uses less digits than its factorization.

84001328880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2941263 (or 2941257 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 42.

The spelling of 84001328880 in words is "eighty-four billion, one million, three hundred twenty-eight thousand, eight hundred eighty".