631360650 has 48 divisors (see below), whose sum is σ = 1569301344. Its totient is φ = 167983680.

The previous prime is 631360643. The next prime is 631360673. The reversal of 631360650 is 56063136.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65544 + ... + 74556.

It is an arithmetic number, because the mean of its divisors is an integer number (32693778).

Almost surely, 2^631360650 is an apocalyptic number.

631360650 is an abundant number, since it is smaller than the sum of its proper divisors (937940694).

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

631360650 is a wasteful number, since it uses less digits than its factorization.

631360650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9495 (or 9490 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 631360650 is about 25126.8909736163. The cubic root of 631360650 is about 857.8786049800.

The spelling of 631360650 in words is "six hundred thirty-one million, three hundred sixty thousand, six hundred fifty".