418644068305 has 64 divisors (see below), whose sum is σ = 545924328768. Its totient is φ = 307015188480.

The previous prime is 418644068287. The next prime is 418644068317. The reversal of 418644068305 is 503860446814.

It can be written as a sum of positive squares in 32 ways, for example, as 375313066384 + 43331001921 = 612628^2 + 208161^2 .

It is not a de Polignac number, because 418644068305 - 2³⁵ = 384284329937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 475191465 + ... + 475192345.

It is an arithmetic number, because the mean of its divisors is an integer number (8530067637).

Almost surely, 2^418644068305 is an apocalyptic number.

It is an amenable number.

418644068305 is a deficient number, since it is larger than the sum of its proper divisors (127280260463).

418644068305 is a wasteful number, since it uses less digits than its factorization.

418644068305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606.

The product of its (nonzero) digits is 2211840, while the sum is 49.

The spelling of 418644068305 in words is "four hundred eighteen billion, six hundred forty-four million, sixty-eight thousand, three hundred five".