431352856709 has 2 divisors, whose sum is σ = 431352856710. Its totient is φ = 431352856708.

The previous prime is 431352856691. The next prime is 431352856747. The reversal of 431352856709 is 907658253134.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 358228584484 + 73124272225 = 598522^2 + 270415^2 .

It is a cyclic number.

It is not a de Polignac number, because 431352856709 - 2²⁸ = 431084421253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431352856609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215676428354 + 215676428355.

It is an arithmetic number, because the mean of its divisors is an integer number (215676428355).

It is a 1-persistent number, because it is pandigital, but 2⋅431352856709 = 862705713418 is not.

Almost surely, 2^431352856709 is an apocalyptic number.

It is an amenable number.

431352856709 is a deficient number, since it is larger than the sum of its proper divisors (1).

431352856709 is an equidigital number, since it uses as much as digits as its factorization.

431352856709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5443200, while the sum is 53.

The spelling of 431352856709 in words is "four hundred thirty-one billion, three hundred fifty-two million, eight hundred fifty-six thousand, seven hundred nine".