80019178272 has 144 divisors (see below), whose sum is σ = 248341530528. Its totient is φ = 24238448640.

The previous prime is 80019178189. The next prime is 80019178297. The reversal of 80019178272 is 27287191008.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-3 number, since 3×80019178272³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 13438848 + ... + 13444800.

It is an arithmetic number, because the mean of its divisors is an integer number (1724593962).

Almost surely, 2^80019178272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80019178272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124170765264).

80019178272 is an abundant number, since it is smaller than the sum of its proper divisors (168322352256).

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

80019178272 is a wasteful number, since it uses less digits than its factorization.

80019178272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10223 (or 10212 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The spelling of 80019178272 in words is "eighty billion, nineteen million, one hundred seventy-eight thousand, two hundred seventy-two".