628193816285 has 24 divisors (see below), whose sum is σ = 876944514816. Its totient is φ = 430743186720.

The previous prime is 628193816279. The next prime is 628193816309. The reversal of 628193816285 is 582618391826.

628193816285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 628193816285 - 2²⁴ = 628177039069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8408204 + ... + 8482586.

It is an arithmetic number, because the mean of its divisors is an integer number (36539354784).

Almost surely, 2^628193816285 is an apocalyptic number.

It is an amenable number.

628193816285 is a deficient number, since it is larger than the sum of its proper divisors (248750698531).

628193816285 is a wasteful number, since it uses less digits than its factorization.

628193816285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108873 (or 108866 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 59.

The spelling of 628193816285 in words is "six hundred twenty-eight billion, one hundred ninety-three million, eight hundred sixteen thousand, two hundred eighty-five".