431322267689 has 4 divisors (see below), whose sum is σ = 431391718800. Its totient is φ = 431252816580.

The previous prime is 431322267661. The next prime is 431322267713. The reversal of 431322267689 is 986762223134.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 986762223134 = 2 ⋅493381111567.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431322267689 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 431322267689.

It is not an unprimeable number, because it can be changed into a prime (431325267689) 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, 34716239 + ... + 34728660.

It is an arithmetic number, because the mean of its divisors is an integer number (107847929700).

Almost surely, 2^431322267689 is an apocalyptic number.

It is an amenable number.

431322267689 is a deficient number, since it is larger than the sum of its proper divisors (69451111).

431322267689 is an equidigital number, since it uses as much as digits as its factorization.

431322267689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69451110.

The product of its digits is 5225472, while the sum is 53.

The spelling of 431322267689 in words is "four hundred thirty-one billion, three hundred twenty-two million, two hundred sixty-seven thousand, six hundred eighty-nine".