494443386628 has 6 divisors (see below), whose sum is σ = 865275926606. Its totient is φ = 247221693312.

The previous prime is 494443386589. The next prime is 494443386709. The reversal of 494443386628 is 826683344494.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 493278666244 + 1164720384 = 702338^2 + 34128^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61805423325 + ... + 61805423332.

Almost surely, 2^494443386628 is an apocalyptic number.

It is an amenable number.

494443386628 is a deficient number, since it is larger than the sum of its proper divisors (370832539978).

494443386628 is a wasteful number, since it uses less digits than its factorization.

494443386628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123610846661 (or 123610846659 counting only the distinct ones).

The product of its digits is 95551488, while the sum is 61.

The spelling of 494443386628 in words is "four hundred ninety-four billion, four hundred forty-three million, three hundred eighty-six thousand, six hundred twenty-eight".