628668945984 has 56 divisors (see below), whose sum is σ = 1663559759488. Its totient is φ = 209530298880.

The previous prime is 628668945977. The next prime is 628668946099. The reversal of 628668945984 is 489549866826.

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 7 ways as a sum of consecutive naturals, for example, 1379289 + ... + 1777575.

Almost surely, 2^628668945984 is an apocalyptic number.

628668945984 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

628668945984 is an abundant number, since it is smaller than the sum of its proper divisors (1034890813504).

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

628668945984 is a wasteful number, since it uses less digits than its factorization.

628668945984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406523 (or 406513 counting only the distinct ones).

The product of its digits is 1433272320, while the sum is 75.

The spelling of 628668945984 in words is "six hundred twenty-eight billion, six hundred sixty-eight million, nine hundred forty-five thousand, nine hundred eighty-four".