628988647476 has 36 divisors (see below), whose sum is σ = 1677322443552. Its totient is φ = 179708965344.

The previous prime is 628988647459. The next prime is 628988647481. The reversal of 628988647476 is 674746889826.

It is a junction number, because it is equal to n+sod(n) for n = 628988647398 and 628988647407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7225506 + ... + 7312038.

Almost surely, 2^628988647476 is an apocalyptic number.

It is an amenable number.

628988647476 is an abundant number, since it is smaller than the sum of its proper divisors (1048333796076).

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

628988647476 is an frugal number, since it uses more digits than its factorization.

628988647476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173080 (or 86545 counting only the distinct ones).

The product of its digits is 1560674304, while the sum is 75.

The spelling of 628988647476 in words is "six hundred twenty-eight billion, nine hundred eighty-eight million, six hundred forty-seven thousand, four hundred seventy-six".