431161111634 has 64 divisors (see below), whose sum is σ = 761125921920. Its totient is φ = 181057536000.

The previous prime is 431161111607. The next prime is 431161111637. The reversal of 431161111634 is 436111161134.

It is a super-2 number, since 2×431161111634² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 431161111634.

It is not an unprimeable number, because it can be changed into a prime (431161111637) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 52112522 + ... + 52120794.

It is an arithmetic number, because the mean of its divisors is an integer number (11892592530).

Almost surely, 2^431161111634 is an apocalyptic number.

431161111634 is a deficient number, since it is larger than the sum of its proper divisors (329964810286).

431161111634 is a wasteful number, since it uses less digits than its factorization.

431161111634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11387.

The product of its digits is 5184, while the sum is 32.

Adding to 431161111634 its reverse (436111161134), we get a palindrome (867272272768).

The spelling of 431161111634 in words is "four hundred thirty-one billion, one hundred sixty-one million, one hundred eleven thousand, six hundred thirty-four".