180420586807 has 4 divisors (see below), whose sum is σ = 180638750376. Its totient is φ = 180202423240.

The previous prime is 180420586733. The next prime is 180420586811. The reversal of 180420586807 is 708685024081.

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 180420586807 - 2²⁷ = 180286369079 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180420580807) 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, 109080544 + ... + 109082197.

It is an arithmetic number, because the mean of its divisors is an integer number (45159687594).

Almost surely, 2^180420586807 is an apocalyptic number.

180420586807 is a deficient number, since it is larger than the sum of its proper divisors (218163569).

180420586807 is an equidigital number, since it uses as much as digits as its factorization.

180420586807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218163568.

The product of its (nonzero) digits is 860160, while the sum is 49.

The spelling of 180420586807 in words is "one hundred eighty billion, four hundred twenty million, five hundred eighty-six thousand, eight hundred seven".