628946075775 has 48 divisors (see below), whose sum is σ = 1064476075520. Its totient is φ = 327502828800.

The previous prime is 628946075713. The next prime is 628946075777. The reversal of 628946075775 is 577570649826.

It is not a de Polignac number, because 628946075775 - 2¹⁸ = 628945813631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628946075777) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8091546 + ... + 8168904.

Almost surely, 2^628946075775 is an apocalyptic number.

628946075775 is a deficient number, since it is larger than the sum of its proper divisors (435529999745).

628946075775 is a wasteful number, since it uses less digits than its factorization.

628946075775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79936 (or 79931 counting only the distinct ones).

The product of its (nonzero) digits is 177811200, while the sum is 66.

The spelling of 628946075775 in words is "six hundred twenty-eight billion, nine hundred forty-six million, seventy-five thousand, seven hundred seventy-five".