80171546028 has 96 divisors (see below), whose sum is σ = 215772480000. Its totient is φ = 22694777856.

The previous prime is 80171546023. The next prime is 80171546029. The reversal of 80171546028 is 82064517108.

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

It is not an unprimeable number, because it can be changed into a prime (80171546023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4155348 + ... + 4174596.

It is an arithmetic number, because the mean of its divisors is an integer number (2247630000).

Almost surely, 2^80171546028 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 80171546028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107886240000).

80171546028 is an abundant number, since it is smaller than the sum of its proper divisors (135600933972).

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

80171546028 is a wasteful number, since it uses less digits than its factorization.

80171546028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19719 (or 19717 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The spelling of 80171546028 in words is "eighty billion, one hundred seventy-one million, five hundred forty-six thousand, twenty-eight".