630540812352 has 224 divisors, whose sum is σ = 1853627203584. Its totient is φ = 187562905600.

The previous prime is 630540812351. The next prime is 630540812399. The reversal of 630540812352 is 253218045036.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 630540812352.

It is not an unprimeable number, because it can be changed into a prime (630540812351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34929793 + ... + 34947839.

Almost surely, 2^630540812352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630540812352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (926813601792).

630540812352 is an abundant number, since it is smaller than the sum of its proper divisors (1223086391232).

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

630540812352 is a wasteful number, since it uses less digits than its factorization.

630540812352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18377 (or 18367 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

Adding to 630540812352 its reverse (253218045036), we get a palindrome (883758857388).

The spelling of 630540812352 in words is "six hundred thirty billion, five hundred forty million, eight hundred twelve thousand, three hundred fifty-two".