431245164321 has 8 divisors (see below), whose sum is σ = 638881724960. Its totient is φ = 287496776196.

The previous prime is 431245164281. The next prime is 431245164331. The reversal of 431245164321 is 123461542134.

431245164321 is a `hidden beast` number, since 4 + 3 + 1 + 2 + 4 + 5 + 1 + 643 + 2 + 1 = 666.

431245164321 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 431245164321 - 2⁶ = 431245164257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431245164331) 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, 7986021535 + ... + 7986021588.

It is an arithmetic number, because the mean of its divisors is an integer number (79860215620).

Almost surely, 2^431245164321 is an apocalyptic number.

It is an amenable number.

431245164321 is a deficient number, since it is larger than the sum of its proper divisors (207636560639).

431245164321 is a wasteful number, since it uses less digits than its factorization.

431245164321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15972043132 (or 15972043126 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The spelling of 431245164321 in words is "four hundred thirty-one billion, two hundred forty-five million, one hundred sixty-four thousand, three hundred twenty-one".