418685506309 has 8 divisors (see below), whose sum is σ = 481709116800. Its totient is φ = 356464744656.

The previous prime is 418685506303. The next prime is 418685506319. The reversal of 418685506309 is 903605586814.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 418685506309 - 2¹³ = 418685498117 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 418685506309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (418685506303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200711089 + ... + 200713174.

It is an arithmetic number, because the mean of its divisors is an integer number (60213639600).

Almost surely, 2^418685506309 is an apocalyptic number.

It is an amenable number.

418685506309 is a deficient number, since it is larger than the sum of its proper divisors (63023610491).

418685506309 is a wasteful number, since it uses less digits than its factorization.

418685506309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401424419.

The product of its (nonzero) digits is 6220800, while the sum is 55.

The spelling of 418685506309 in words is "four hundred eighteen billion, six hundred eighty-five million, five hundred six thousand, three hundred nine".