80073521539173 has 6 divisors (see below), whose sum is σ = 115661753334374. Its totient is φ = 53382347692776.

The previous prime is 80073521539169. The next prime is 80073521539211. The reversal of 80073521539173 is 37193512537008.

It is a happy number.

80073521539173 is a `hidden beast` number, since 8 + 0 + 0 + 7 + 35 + 2 + 1 + 539 + 1 + 73 = 666.

It can be written as a sum of positive squares in only one way, i.e., 44126565985089 + 35946955554084 = 6642783^2 + 5995578^2 .

It is not a de Polignac number, because 80073521539173 - 2² = 80073521539169 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80073521539873) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4448528974390 + ... + 4448528974407.

Almost surely, 2^{80073521539173} is an apocalyptic number.

It is an amenable number.

80073521539173 is a deficient number, since it is larger than the sum of its proper divisors (35588231795201).

80073521539173 is a wasteful number, since it uses less digits than its factorization.

80073521539173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8897057948803 (or 8897057948800 counting only the distinct ones).

The product of its (nonzero) digits is 4762800, while the sum is 54.

The spelling of 80073521539173 in words is "eighty trillion, seventy-three billion, five hundred twenty-one million, five hundred thirty-nine thousand, one hundred seventy-three".