80000521247 has 4 divisors (see below), whose sum is σ = 80005238376. Its totient is φ = 79995804120.

The previous prime is 80000521201. The next prime is 80000521267. The reversal of 80000521247 is 74212500008.

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

It is a cyclic number.

It is not a de Polignac number, because 80000521247 - 2¹⁴ = 80000504863 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 (80000521267) 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, 2333033 + ... + 2367074.

It is an arithmetic number, because the mean of its divisors is an integer number (20001309594).

Almost surely, 2^80000521247 is an apocalyptic number.

80000521247 is a deficient number, since it is larger than the sum of its proper divisors (4717129).

80000521247 is a wasteful number, since it uses less digits than its factorization.

80000521247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4717128.

The product of its (nonzero) digits is 4480, while the sum is 29.

The spelling of 80000521247 in words is "eighty billion, five hundred twenty-one thousand, two hundred forty-seven".