628506250220 has 48 divisors (see below), whose sum is σ = 1336627202400. Its totient is φ = 248217530880.

The previous prime is 628506250139. The next prime is 628506250241. The reversal of 628506250220 is 22052605826.

628506250220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 974486 + ... + 1485474.

It is an arithmetic number, because the mean of its divisors is an integer number (27846400050).

Almost surely, 2^628506250220 is an apocalyptic number.

It is an amenable number.

628506250220 is an abundant number, since it is smaller than the sum of its proper divisors (708120952180).

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

628506250220 is a wasteful number, since it uses less digits than its factorization.

628506250220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511778 (or 511776 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 628506250220 in words is "six hundred twenty-eight billion, five hundred six million, two hundred fifty thousand, two hundred twenty".