80514380509 has 4 divisors (see below), whose sum is σ = 80514984960. Its totient is φ = 80513776060.

The previous prime is 80514380501. The next prime is 80514380549. The reversal of 80514380509 is 90508341508.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 80514380509 - 2³ = 80514380501 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 (80514380501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4957 + ... + 401314.

It is an arithmetic number, because the mean of its divisors is an integer number (20128746240).

Almost surely, 2^80514380509 is an apocalyptic number.

It is an amenable number.

80514380509 is a deficient number, since it is larger than the sum of its proper divisors (604451).

80514380509 is a wasteful number, since it uses less digits than its factorization.

80514380509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604450.

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 80514380509 in words is "eighty billion, five hundred fourteen million, three hundred eighty thousand, five hundred nine".