630480851 has 64 divisors (see below), whose sum is σ = 900910080. Its totient is φ = 425295360.

The previous prime is 630480841. The next prime is 630480863. The reversal of 630480851 is 158084036.

It is not a de Polignac number, because 630480851 - 2¹⁴ = 630464467 is a prime.

It is a super-2 number, since 2×630480851² = 795012206955368402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (630480841) 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 in 63 ways as a sum of consecutive naturals, for example, 1073780 + ... + 1074366.

It is an arithmetic number, because the mean of its divisors is an integer number (14076720).

Almost surely, 2^630480851 is an apocalyptic number.

630480851 is a deficient number, since it is larger than the sum of its proper divisors (270429229).

630480851 is a wasteful number, since it uses less digits than its factorization.

630480851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 630480851 is about 25109.3777501554. The cubic root of 630480851 is about 857.4799360649.

The spelling of 630480851 in words is "six hundred thirty million, four hundred eighty thousand, eight hundred fifty-one".