636063834356 has 24 divisors (see below), whose sum is σ = 1180121591880. Its totient is φ = 298934894592.

The previous prime is 636063834323. The next prime is 636063834359. The reversal of 636063834356 is 653438360636.

It can be written as a sum of positive squares in 4 ways, for example, as 86063609956 + 550000224400 = 293366^2 + 741620^2 .

It is a junction number, because it is equal to n+sod(n) for n = 636063834298 and 636063834307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (636063834359) 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, 6029555 + ... + 6134138.

It is an arithmetic number, because the mean of its divisors is an integer number (49171732995).

Almost surely, 2^636063834356 is an apocalyptic number.

It is an amenable number.

636063834356 is a deficient number, since it is larger than the sum of its proper divisors (544057757524).

636063834356 is a wasteful number, since it uses less digits than its factorization.

636063834356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12164483 (or 12164481 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 53.

The spelling of 636063834356 in words is "six hundred thirty-six billion, sixty-three million, eight hundred thirty-four thousand, three hundred fifty-six".