636134535352401 has 8 divisors (see below), whose sum is σ = 849139946023200. Its totient is φ = 423609407458272.

The previous prime is 636134535352333. The next prime is 636134535352411. The reversal of 636134535352401 is 104253535431636.

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

It is a de Polignac number, because none of the positive numbers 2^k-636134535352401 is a prime.

It is a super-2 number, since 2×636134535352401² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (636134535352411) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 120070691076 + ... + 120070696373.

It is an arithmetic number, because the mean of its divisors is an integer number (106142493252900).

Almost surely, 2^{636134535352401} is an apocalyptic number.

It is an amenable number.

636134535352401 is a deficient number, since it is larger than the sum of its proper divisors (213005410670799).

636134535352401 is a wasteful number, since it uses less digits than its factorization.

636134535352401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240141388335.

The product of its (nonzero) digits is 11664000, while the sum is 51.

The spelling of 636134535352401 in words is "six hundred thirty-six trillion, one hundred thirty-four billion, five hundred thirty-five million, three hundred fifty-two thousand, four hundred one".