628812816250 has 40 divisors (see below), whose sum is σ = 1179204833664. Its totient is φ = 251406030000.

The previous prime is 628812816193. The next prime is 628812816263. The reversal of 628812816250 is 52618218826.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 628812816194 and 628812816203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2545719 + ... + 2781781.

Almost surely, 2^628812816250 is an apocalyptic number.

628812816250 is a deficient number, since it is larger than the sum of its proper divisors (550392017414).

628812816250 is a wasteful number, since it uses less digits than its factorization.

628812816250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238216 (or 238201 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 49.

The spelling of 628812816250 in words is "six hundred twenty-eight billion, eight hundred twelve million, eight hundred sixteen thousand, two hundred fifty".