636344636350 has 24 divisors (see below), whose sum is σ = 1191139898328. Its totient is φ = 252916591200.

The previous prime is 636344636341. The next prime is 636344636353. The reversal of 636344636350 is 53636443636.

It is a super-2 number, since 2×636344636350² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 636344636294 and 636344636303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (636344636353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40523656 + ... + 40539355.

It is an arithmetic number, because the mean of its divisors is an integer number (49630829097).

Almost surely, 2^636344636350 is an apocalyptic number.

636344636350 is a deficient number, since it is larger than the sum of its proper divisors (554795261978).

636344636350 is a wasteful number, since it uses less digits than its factorization.

636344636350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81063180 (or 81063175 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 49.

The spelling of 636344636350 in words is "six hundred thirty-six billion, three hundred forty-four million, six hundred thirty-six thousand, three hundred fifty".