1628946633 has 16 divisors (see below), whose sum is σ = 2221307136. Its totient is φ = 1061341440.

The previous prime is 1628946607. The next prime is 1628946637. The reversal of 1628946633 is 3366498261.

It is not a de Polignac number, because 1628946633 - 2⁸ = 1628946377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1628946637) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 95473 + ... + 111233.

It is an arithmetic number, because the mean of its divisors is an integer number (138831696).

Almost surely, 2^1628946633 is an apocalyptic number.

It is an amenable number.

1628946633 is a deficient number, since it is larger than the sum of its proper divisors (592360503).

1628946633 is a wasteful number, since it uses less digits than its factorization.

1628946633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16544.

The product of its digits is 1119744, while the sum is 48.

The square root of 1628946633 is about 40360.2110128280. The cubic root of 1628946633 is about 1176.6183543773.

The spelling of 1628946633 in words is "one billion, six hundred twenty-eight million, nine hundred forty-six thousand, six hundred thirty-three".