628781700212 has 96 divisors (see below), whose sum is σ = 1219276800000. Its totient is φ = 282408721920.

The previous prime is 628781700187. The next prime is 628781700233. The reversal of 628781700212 is 212007187826.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 209662289 + ... + 209665287.

It is an arithmetic number, because the mean of its divisors is an integer number (12700800000).

Almost surely, 2^628781700212 is an apocalyptic number.

628781700212 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

628781700212 is a deficient number, since it is larger than the sum of its proper divisors (590495099788).

628781700212 is a wasteful number, since it uses less digits than its factorization.

628781700212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4389 (or 4387 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 44.

The spelling of 628781700212 in words is "six hundred twenty-eight billion, seven hundred eighty-one million, seven hundred thousand, two hundred twelve".