629820459520 has 720 divisors, whose sum is σ = 1892126396160. Its totient is φ = 196903010304.

The previous prime is 629820459517. The next prime is 629820459539. The reversal of 629820459520 is 25954028926.

It is a super-2 number, since 2×629820459520² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7972410841 + ... + 7972410919.

It is an arithmetic number, because the mean of its divisors is an integer number (2627953328).

Almost surely, 2^629820459520 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 629820459520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (946063198080).

629820459520 is an abundant number, since it is smaller than the sum of its proper divisors (1262305936640).

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

629820459520 is an equidigital number, since it uses as much as digits as its factorization.

629820459520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 629820459520 in words is "six hundred twenty-nine billion, eight hundred twenty million, four hundred fifty-nine thousand, five hundred twenty".