431255544022642 has 32 divisors (see below), whose sum is σ = 681121057593600. Its totient is φ = 204221572708608.

The previous prime is 431255544022607. The next prime is 431255544022669. The reversal of 431255544022642 is 246220445552134.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2857265034 + ... + 2857415962.

It is an arithmetic number, because the mean of its divisors is an integer number (21285033049800).

Almost surely, 2^{431255544022642} is an apocalyptic number.

431255544022642 is a deficient number, since it is larger than the sum of its proper divisors (249865513570958).

431255544022642 is a wasteful number, since it uses less digits than its factorization.

431255544022642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171570.

The product of its (nonzero) digits is 9216000, while the sum is 49.

Adding to 431255544022642 its reverse (246220445552134), we get a palindrome (677475989574776).

The spelling of 431255544022642 in words is "four hundred thirty-one trillion, two hundred fifty-five billion, five hundred forty-four million, twenty-two thousand, six hundred forty-two".