631808527234089 has 16 divisors (see below), whose sum is σ = 846689207411520. Its totient is φ = 419066774212800.

The previous prime is 631808527234033. The next prime is 631808527234127. The reversal of 631808527234089 is 980432725808136.

It is not a de Polignac number, because 631808527234089 - 2¹¹ = 631808527232041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (631808527234009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 602474002 + ... + 603521780.

It is an arithmetic number, because the mean of its divisors is an integer number (52918075463220).

It is a 1-persistent number, because it is pandigital, but 2⋅631808527234089 = 1263617054468178 is not.

Almost surely, 2^{631808527234089} is an apocalyptic number.

It is an amenable number.

631808527234089 is a deficient number, since it is larger than the sum of its proper divisors (214880680177431).

631808527234089 is a wasteful number, since it uses less digits than its factorization.

631808527234089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068280.

The product of its (nonzero) digits is 139345920, while the sum is 66.

The spelling of 631808527234089 in words is "six hundred thirty-one trillion, eight hundred eight billion, five hundred twenty-seven million, two hundred thirty-four thousand, eighty-nine".