80040584389 has 4 divisors (see below), whose sum is σ = 80065375660. Its totient is φ = 80015793120.

The previous prime is 80040584387. The next prime is 80040584399. The reversal of 80040584389 is 98348504008.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7648377025 + 72392207364 = 87455^2 + 269058^2 .

It is a cyclic number.

It is not a de Polignac number, because 80040584389 - 2¹ = 80040584387 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 (80040584387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12390792 + ... + 12397249.

It is an arithmetic number, because the mean of its divisors is an integer number (20016343915).

Almost surely, 2^80040584389 is an apocalyptic number.

It is an amenable number.

80040584389 is a deficient number, since it is larger than the sum of its proper divisors (24791271).

80040584389 is a wasteful number, since it uses less digits than its factorization.

80040584389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24791270.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 80040584389 in words is "eighty billion, forty million, five hundred eighty-four thousand, three hundred eighty-nine".