636401333453113 has 8 divisors (see below), whose sum is σ = 646836245455680. Its totient is φ = 625966489297680.

The previous prime is 636401333453029. The next prime is 636401333453161. The reversal of 636401333453113 is 311354333104636.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 636401333453113 - 2⁹ = 636401333452601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (636401333453213) 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, 2126556 + ... + 35739682.

It is an arithmetic number, because the mean of its divisors is an integer number (80854530681960).

Almost surely, 2^{636401333453113} is an apocalyptic number.

It is an amenable number.

636401333453113 is a deficient number, since it is larger than the sum of its proper divisors (10434912002567).

636401333453113 is a wasteful number, since it uses less digits than its factorization.

636401333453113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33923567.

The product of its (nonzero) digits is 2099520, while the sum is 46.

Adding to 636401333453113 its reverse (311354333104636), we get a palindrome (947755666557749).

The spelling of 636401333453113 in words is "six hundred thirty-six trillion, four hundred one billion, three hundred thirty-three million, four hundred fifty-three thousand, one hundred thirteen".