630933318146 has 4 divisors (see below), whose sum is σ = 946399977222. Its totient is φ = 315466659072.

The previous prime is 630933318143. The next prime is 630933318157. The reversal of 630933318146 is 641813339036.

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

It can be written as a sum of positive squares in only one way, i.e., 628831554121 + 2101764025 = 792989^2 + 45845^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 630933318146.

It is not an unprimeable number, because it can be changed into a prime (630933318143) 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 as a sum of consecutive naturals, namely, 157733329535 + ... + 157733329538.

Almost surely, 2^630933318146 is an apocalyptic number.

630933318146 is a deficient number, since it is larger than the sum of its proper divisors (315466659076).

630933318146 is a wasteful number, since it uses less digits than its factorization.

630933318146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315466659075.

The product of its (nonzero) digits is 839808, while the sum is 47.

The spelling of 630933318146 in words is "six hundred thirty billion, nine hundred thirty-three million, three hundred eighteen thousand, one hundred forty-six".