80340204847 has 4 divisors (see below), whose sum is σ = 91817376976. Its totient is φ = 68863032720.

The previous prime is 80340204829. The next prime is 80340204907. The reversal of 80340204847 is 74840204308.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80340204847 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 (80340204047) 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, 5738586054 + ... + 5738586067.

It is an arithmetic number, because the mean of its divisors is an integer number (22954344244).

Almost surely, 2^80340204847 is an apocalyptic number.

80340204847 is a deficient number, since it is larger than the sum of its proper divisors (11477172129).

80340204847 is a wasteful number, since it uses less digits than its factorization.

80340204847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11477172128.

The product of its (nonzero) digits is 172032, while the sum is 40.

The spelling of 80340204847 in words is "eighty billion, three hundred forty million, two hundred four thousand, eight hundred forty-seven".