80409528533 has 16 divisors (see below), whose sum is σ = 82923970752. Its totient is φ = 77922000000.

The previous prime is 80409528523. The next prime is 80409528571. The reversal of 80409528533 is 33582590408.

It is a cyclic number.

It is not a de Polignac number, because 80409528533 - 2²⁴ = 80392751317 is a prime.

It is a super-2 number, since 2×80409528533² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80409528503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21724583 + ... + 21728283.

It is an arithmetic number, because the mean of its divisors is an integer number (5182748172).

Almost surely, 2^80409528533 is an apocalyptic number.

It is an amenable number.

80409528533 is a deficient number, since it is larger than the sum of its proper divisors (2514442219).

80409528533 is a wasteful number, since it uses less digits than its factorization.

80409528533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7156.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 80409528533 in words is "eighty billion, four hundred nine million, five hundred twenty-eight thousand, five hundred thirty-three".