80185389347 has 4 divisors (see below), whose sum is σ = 91640444976. Its totient is φ = 68730333720.

The previous prime is 80185389307. The next prime is 80185389437. The reversal of 80185389347 is 74398358108.

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 80185389347 - 2¹⁰ = 80185388323 is a prime.

It is a super-3 number, since 3×80185389347³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80185389292 and 80185389301.

It is not an unprimeable number, because it can be changed into a prime (80185389307) 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, 5727527804 + ... + 5727527817.

It is an arithmetic number, because the mean of its divisors is an integer number (22910111244).

Almost surely, 2^80185389347 is an apocalyptic number.

80185389347 is a deficient number, since it is larger than the sum of its proper divisors (11455055629).

80185389347 is a wasteful number, since it uses less digits than its factorization.

80185389347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11455055628.

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 80185389347 in words is "eighty billion, one hundred eighty-five million, three hundred eighty-nine thousand, three hundred forty-seven".