634231132436 has 24 divisors (see below), whose sum is σ = 1217569177440. Its totient is φ = 286676333600.

The previous prime is 634231132433. The next prime is 634231132453.

634231132436 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 634231132436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634231132433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40255655 + ... + 40271406.

It is an arithmetic number, because the mean of its divisors is an integer number (50732049060).

Almost surely, 2^634231132436 is an apocalyptic number.

It is an amenable number.

634231132436 is a deficient number, since it is larger than the sum of its proper divisors (583338045004).

634231132436 is a wasteful number, since it uses less digits than its factorization.

634231132436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80527255 (or 80527253 counting only the distinct ones).

The product of its digits is 186624, while the sum is 38.

It can be divided in two parts, 634231 and 132436, that added together give a palindrome (766667).

The spelling of 634231132436 in words is "six hundred thirty-four billion, two hundred thirty-one million, one hundred thirty-two thousand, four hundred thirty-six".