431717714018 has 4 divisors (see below), whose sum is σ = 647576571030. Its totient is φ = 215858857008.

The previous prime is 431717714017. The next prime is 431717714041. The reversal of 431717714018 is 810417717134.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 810417717134 = 2 ⋅405208858567.

It can be written as a sum of positive squares in only one way, i.e., 405930814129 + 25786899889 = 637127^2 + 160583^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 431717714018.

It is not an unprimeable number, because it can be changed into a prime (431717714011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107929428503 + ... + 107929428506.

Almost surely, 2^431717714018 is an apocalyptic number.

431717714018 is a deficient number, since it is larger than the sum of its proper divisors (215858857012).

431717714018 is a wasteful number, since it uses less digits than its factorization.

431717714018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215858857011.

The product of its (nonzero) digits is 131712, while the sum is 44.

The spelling of 431717714018 in words is "four hundred thirty-one billion, seven hundred seventeen million, seven hundred fourteen thousand, eighteen".