628946285688 has 96 divisors (see below), whose sum is σ = 1947398824800. Its totient is φ = 179637986304.

The previous prime is 628946285677. The next prime is 628946285743. The reversal of 628946285688 is 886582649826.

628946285688 is a `hidden beast` number, since 6 + 2 + 8 + 9 + 462 + 85 + 6 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

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, 1286220 + ... + 1706532.

It is an arithmetic number, because the mean of its divisors is an integer number (20285404425).

Almost surely, 2^628946285688 is an apocalyptic number.

It is an amenable number.

628946285688 is an abundant number, since it is smaller than the sum of its proper divisors (1318452539112).

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

628946285688 is a wasteful number, since it uses less digits than its factorization.

628946285688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423301 (or 423294 counting only the distinct ones).

The product of its digits is 637009920, while the sum is 72.

The spelling of 628946285688 in words is "six hundred twenty-eight billion, nine hundred forty-six million, two hundred eighty-five thousand, six hundred eighty-eight".