494455438828 has 24 divisors (see below), whose sum is σ = 931906594080. Its totient is φ = 228198382080.

The previous prime is 494455438751. The next prime is 494455438843. The reversal of 494455438828 is 828834554494.

It is a self number, because there is not a number n which added to its sum of digits gives 494455438828.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 810513 + ... + 1282903.

It is an arithmetic number, because the mean of its divisors is an integer number (38829441420).

Almost surely, 2^494455438828 is an apocalyptic number.

It is an amenable number.

494455438828 is a deficient number, since it is larger than the sum of its proper divisors (437451155252).

494455438828 is a wasteful number, since it uses less digits than its factorization.

494455438828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492537 (or 492535 counting only the distinct ones).

The product of its digits is 176947200, while the sum is 64.

The spelling of 494455438828 in words is "four hundred ninety-four billion, four hundred fifty-five million, four hundred thirty-eight thousand, eight hundred twenty-eight".