431666415317 has 4 divisors (see below), whose sum is σ = 431879375616. Its totient is φ = 431453455020.

The previous prime is 431666415289. The next prime is 431666415353. The reversal of 431666415317 is 713514666134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 431666415317 - 2¹⁰ = 431666414293 is a prime.

It is a super-2 number, since 2×431666415317² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431666411317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106477109 + ... + 106481162.

It is an arithmetic number, because the mean of its divisors is an integer number (107969843904).

Almost surely, 2^431666415317 is an apocalyptic number.

It is an amenable number.

431666415317 is a deficient number, since it is larger than the sum of its proper divisors (212960299).

431666415317 is a wasteful number, since it uses less digits than its factorization.

431666415317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212960298.

The product of its digits is 1088640, while the sum is 47.

The spelling of 431666415317 in words is "four hundred thirty-one billion, six hundred sixty-six million, four hundred fifteen thousand, three hundred seventeen".