431440243544005 has 32 divisors (see below), whose sum is σ = 542105562974976. Its totient is φ = 329004520272384.

The previous prime is 431440243544003. The next prime is 431440243544041. The reversal of 431440243544005 is 500445342044134.

It is a cyclic number.

It is not a de Polignac number, because 431440243544005 - 2¹ = 431440243544003 is a prime.

It is a super-2 number, since 2×431440243544005² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431440243544003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 811210849 + ... + 811742521.

It is an arithmetic number, because the mean of its divisors is an integer number (16940798842968).

Almost surely, 2^{431440243544005} is an apocalyptic number.

It is an amenable number.

431440243544005 is a deficient number, since it is larger than the sum of its proper divisors (110665319430971).

431440243544005 is a wasteful number, since it uses less digits than its factorization.

431440243544005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556077.

The product of its (nonzero) digits is 1843200, while the sum is 43.

Adding to 431440243544005 its reverse (500445342044134), we get a palindrome (931885585588139).

The spelling of 431440243544005 in words is "four hundred thirty-one trillion, four hundred forty billion, two hundred forty-three million, five hundred forty-four thousand, five".