431255544022542 has 16 divisors (see below), whose sum is σ = 862511695201152. Its totient is φ = 143751746814840.

The previous prime is 431255544022519. The next prime is 431255544022579. The reversal of 431255544022542 is 245220445552134.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 431255544022491 and 431255544022500.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15789508 + ... + 33343959.

It is an arithmetic number, because the mean of its divisors is an integer number (53906980950072).

Almost surely, 2^{431255544022542} is an apocalyptic number.

431255544022542 is an abundant number, since it is smaller than the sum of its proper divisors (431256151178610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

431255544022542 is a wasteful number, since it uses less digits than its factorization.

431255544022542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50596343.

The product of its (nonzero) digits is 7680000, while the sum is 48.

Adding to 431255544022542 its reverse (245220445552134), we get a palindrome (676475989574676).

The spelling of 431255544022542 in words is "four hundred thirty-one trillion, two hundred fifty-five billion, five hundred forty-four million, twenty-two thousand, five hundred forty-two".