630442009645 has 8 divisors (see below), whose sum is σ = 864606184704. Its totient is φ = 432303092304.

The previous prime is 630442009643. The next prime is 630442009663. The reversal of 630442009645 is 546900244036.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 630442009645 - 2¹ = 630442009643 is a prime.

It is a super-3 number, since 3×630442009645³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630442009643) 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 7 ways as a sum of consecutive naturals, for example, 9006314389 + ... + 9006314458.

It is an arithmetic number, because the mean of its divisors is an integer number (108075773088).

Almost surely, 2^630442009645 is an apocalyptic number.

It is an amenable number.

630442009645 is a deficient number, since it is larger than the sum of its proper divisors (234164175059).

630442009645 is a wasteful number, since it uses less digits than its factorization.

630442009645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18012628859.

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 630442009645 in words is "six hundred thirty billion, four hundred forty-two million, nine thousand, six hundred forty-five".