494651989224 has 96 divisors (see below), whose sum is σ = 1373805505800. Its totient is φ = 160692725760.

The previous prime is 494651989217. The next prime is 494651989289. The reversal of 494651989224 is 422989156494.

494651989224 is a `hidden beast` number, since 4 + 9 + 4 + 6 + 519 + 8 + 92 + 24 = 666.

It is a Cunningham number, because it is equal to 703315²-1.

It can be written as a sum of positive squares in 4 ways, for example, as 100039364100 + 394612625124 = 316290^2 + 628182^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2725342 + ... + 2901170.

Almost surely, 2^494651989224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 494651989224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (686902752900).

494651989224 is an abundant number, since it is smaller than the sum of its proper divisors (879153516576).

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

494651989224 is a wasteful number, since it uses less digits than its factorization.

494651989224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176835 (or 176828 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 63.

The spelling of 494651989224 in words is "four hundred ninety-four billion, six hundred fifty-one million, nine hundred eighty-nine thousand, two hundred twenty-four".