636213514336 has 36 divisors (see below), whose sum is σ = 1274134985172. Its totient is φ = 312715062464.

The previous prime is 636213514249. The next prime is 636213514373. The reversal of 636213514336 is 633415312636.

It is a junction number, because it is equal to n+sod(n) for n = 636213514292 and 636213514301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2744350 + ... + 2967133.

It is an arithmetic number, because the mean of its divisors is an integer number (35392638477).

Almost surely, 2^636213514336 is an apocalyptic number.

It is an amenable number.

636213514336 is an abundant number, since it is smaller than the sum of its proper divisors (637921470836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

636213514336 is an equidigital number, since it uses as much as digits as its factorization.

636213514336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5711611 (or 5711544 counting only the distinct ones).

The product of its digits is 699840, while the sum is 43.

The spelling of 636213514336 in words is "six hundred thirty-six billion, two hundred thirteen million, five hundred fourteen thousand, three hundred thirty-six".