628408862804 has 12 divisors (see below), whose sum is σ = 1100254864800. Its totient is φ = 314050330008.

The previous prime is 628408862797. The next prime is 628408862831. The reversal of 628408862804 is 408268804826.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 628408862804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38516174 + ... + 38532485.

It is an arithmetic number, because the mean of its divisors is an integer number (91687905400).

Almost surely, 2^628408862804 is an apocalyptic number.

It is an amenable number.

628408862804 is a deficient number, since it is larger than the sum of its proper divisors (471846001996).

628408862804 is a wasteful number, since it uses less digits than its factorization.

628408862804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77050702 (or 77050700 counting only the distinct ones).

The product of its (nonzero) digits is 9437184, while the sum is 56.

The spelling of 628408862804 in words is "six hundred twenty-eight billion, four hundred eight million, eight hundred sixty-two thousand, eight hundred four".