231645430624 has 24 divisors (see below), whose sum is σ = 457508996280. Its totient is φ = 115452669696.

The previous prime is 231645430613. The next prime is 231645430637. The reversal of 231645430624 is 426034546132.

231645430624 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11553754 + ... + 11573785.

It is an arithmetic number, because the mean of its divisors is an integer number (19062874845).

Almost surely, 2^231645430624 is an apocalyptic number.

It is an amenable number.

231645430624 is a deficient number, since it is larger than the sum of its proper divisors (225863565656).

231645430624 is a wasteful number, since it uses less digits than its factorization.

231645430624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23127862 (or 23127854 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 40.

Adding to 231645430624 its reverse (426034546132), we get a palindrome (657679976756).

The spelling of 231645430624 in words is "two hundred thirty-one billion, six hundred forty-five million, four hundred thirty thousand, six hundred twenty-four".