630828813742768 has 40 divisors (see below), whose sum is σ = 1239473911592448. Its totient is φ = 310968067226112.

The previous prime is 630828813742753. The next prime is 630828813742769. The reversal of 630828813742768 is 867247318828036.

It is a happy number.

It is a super-2 number, since 2×630828813742768² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (73).

It is a self number, because there is not a number n which added to its sum of digits gives 630828813742768.

It is not an unprimeable number, because it can be changed into a prime (630828813742769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106128496 + ... + 111914767.

Almost surely, 2^{630828813742768} is an apocalyptic number.

It is an amenable number.

630828813742768 is a deficient number, since it is larger than the sum of its proper divisors (608645097849680).

630828813742768 is a wasteful number, since it uses less digits than its factorization.

630828813742768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218045821 (or 218045815 counting only the distinct ones).

The product of its (nonzero) digits is 1040449536, while the sum is 73.

The spelling of 630828813742768 in words is "six hundred thirty trillion, eight hundred twenty-eight billion, eight hundred thirteen million, seven hundred forty-two thousand, seven hundred sixty-eight".