630613868544 has 513 divisors, whose sum is σ = 2045952947311. Its totient is φ = 187029258240.

The previous prime is 630613868503. The next prime is 630613868561. The reversal of 630613868544 is 445868316036.

The square root of 630613868544 is 794112.

It is a perfect power (a square), and thus also a powerful number.

630613868544 is a `hidden beast` number, since 6 + 3 + 0 + 6 + 1 + 38 + 68 + 544 = 666.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 13417316329 + ... + 13417316375.

Almost surely, 2^630613868544 is an apocalyptic number.

630613868544 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

630613868544 is the 794112-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630613868544

630613868544 is an abundant number, since it is smaller than the sum of its proper divisors (1415339078767).

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

630613868544 is an frugal number, since it uses more digits than its factorization.

630613868544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 54.

The spelling of 630613868544 in words is "six hundred thirty billion, six hundred thirteen million, eight hundred sixty-eight thousand, five hundred forty-four".