628355852850 has 48 divisors (see below), whose sum is σ = 1699988202720. Its totient is φ = 152328691200.

The previous prime is 628355852827. The next prime is 628355852851. The reversal of 628355852850 is 58258553826.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (628355852851) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 190409215 + ... + 190412514.

It is an arithmetic number, because the mean of its divisors is an integer number (35416420890).

Almost surely, 2^628355852850 is an apocalyptic number.

628355852850 is an abundant number, since it is smaller than the sum of its proper divisors (1071632349870).

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

628355852850 is a wasteful number, since it uses less digits than its factorization.

628355852850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380821755 (or 380821750 counting only the distinct ones).

The product of its (nonzero) digits is 23040000, while the sum is 57.

The spelling of 628355852850 in words is "six hundred twenty-eight billion, three hundred fifty-five million, eight hundred fifty-two thousand, eight hundred fifty".