418020087173 has 4 divisors (see below), whose sum is σ = 450175478508. Its totient is φ = 385864695840.

The previous prime is 418020087169. The next prime is 418020087217. The reversal of 418020087173 is 371780020814.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 371780020814 = 2 ⋅185890010407.

It can be written as a sum of positive squares in 2 ways, for example, as 273134800129 + 144885287044 = 522623^2 + 380638^2 .

It is not a de Polignac number, because 418020087173 - 2² = 418020087169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 418020087173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (418020087973) 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, 16077695648 + ... + 16077695673.

It is an arithmetic number, because the mean of its divisors is an integer number (112543869627).

Almost surely, 2^418020087173 is an apocalyptic number.

It is an amenable number.

418020087173 is a deficient number, since it is larger than the sum of its proper divisors (32155391335).

418020087173 is a wasteful number, since it uses less digits than its factorization.

418020087173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32155391334.

The product of its (nonzero) digits is 75264, while the sum is 41.

The spelling of 418020087173 in words is "four hundred eighteen billion, twenty million, eighty-seven thousand, one hundred seventy-three".