80435173824 has 112 divisors (see below), whose sum is σ = 236604291840. Its totient is φ = 26795877120.

The previous prime is 80435173811. The next prime is 80435173849. The reversal of 80435173824 is 42837153408.

80435173824 is a `hidden beast` number, since 80 + 4 + 3 + 517 + 38 + 24 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 80435173824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3116557 + ... + 3142259.

It is an arithmetic number, because the mean of its divisors is an integer number (2112538320).

Almost surely, 2^80435173824 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 80435173824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118302145920).

80435173824 is an abundant number, since it is smaller than the sum of its proper divisors (156169118016).

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

80435173824 is a wasteful number, since it uses less digits than its factorization.

80435173824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27535 (or 27519 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 80435173824 in words is "eighty billion, four hundred thirty-five million, one hundred seventy-three thousand, eight hundred twenty-four".