630518870 has 16 divisors (see below), whose sum is σ = 1174070160. Its totient is φ = 243510624.

The previous prime is 630518767. The next prime is 630518881. The reversal of 630518870 is 78815036.

630518870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1086812 + ... + 1087391.

It is an arithmetic number, because the mean of its divisors is an integer number (73379385).

Almost surely, 2^630518870 is an apocalyptic number.

630518870 is a deficient number, since it is larger than the sum of its proper divisors (543551290).

630518870 is a wasteful number, since it uses less digits than its factorization.

630518870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174239.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 630518870 is about 25110.1348064880. The cubic root of 630518870 is about 857.4971715207.

The spelling of 630518870 in words is "six hundred thirty million, five hundred eighteen thousand, eight hundred seventy".