80014899840 has 128 divisors (see below), whose sum is σ = 255397147200. Its totient is φ = 21308055552.

The previous prime is 80014899827. The next prime is 80014899841. The reversal of 80014899840 is 4899841008.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (80014899841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1390684 + ... + 1447076.

Almost surely, 2^80014899840 is an apocalyptic number.

80014899840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80014899840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127698573600).

80014899840 is an abundant number, since it is smaller than the sum of its proper divisors (175382247360).

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

80014899840 is a wasteful number, since it uses less digits than its factorization.

80014899840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57154 (or 57142 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 51.

The spelling of 80014899840 in words is "eighty billion, fourteen million, eight hundred ninety-nine thousand, eight hundred forty".