3630638565838 has 4 divisors (see below), whose sum is σ = 5445957848760. Its totient is φ = 1815319282918.

The previous prime is 3630638565779. The next prime is 3630638565859. The reversal of 3630638565838 is 8385658360363.

It is a happy number.

3630638565838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3630638565838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 907659641458 + ... + 907659641461.

It is an arithmetic number, because the mean of its divisors is an integer number (1361489462190).

Almost surely, 2^{3630638565838} is an apocalyptic number.

3630638565838 is a deficient number, since it is larger than the sum of its proper divisors (1815319282922).

3630638565838 is a wasteful number, since it uses less digits than its factorization.

3630638565838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815319282921.

The product of its (nonzero) digits is 223948800, while the sum is 64.

The spelling of 3630638565838 in words is "three trillion, six hundred thirty billion, six hundred thirty-eight million, five hundred sixty-five thousand, eight hundred thirty-eight".