636346520241 has 8 divisors (see below), whose sum is σ = 849642088320. Its totient is φ = 423640982832.

The previous prime is 636346520239. The next prime is 636346520263. The reversal of 636346520241 is 142025643636.

It is a happy number.

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

It is not a de Polignac number, because 636346520241 - 2¹ = 636346520239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 636346520193 and 636346520202.

It is not an unprimeable number, because it can be changed into a prime (636346524241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147505150 + ... + 147509463.

It is an arithmetic number, because the mean of its divisors is an integer number (106205261040).

Almost surely, 2^636346520241 is an apocalyptic number.

It is an amenable number.

636346520241 is a deficient number, since it is larger than the sum of its proper divisors (213295568079).

636346520241 is a wasteful number, since it uses less digits than its factorization.

636346520241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295015335.

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 636346520241 in words is "six hundred thirty-six billion, three hundred forty-six million, five hundred twenty thousand, two hundred forty-one".