493659221850 has 72 divisors (see below), whose sum is σ = 1326387937212. Its totient is φ = 131633510400.

The previous prime is 493659221791. The next prime is 493659221857. The reversal of 493659221850 is 58122956394.

493659221850 is a `hidden beast` number, since 4 + 9 + 36 + 592 + 2 + 18 + 5 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 229390228809 + 264268993041 = 478947^2 + 514071^2 .

It is not an unprimeable number, because it can be changed into a prime (493659221857) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9045244 + ... + 9099656.

Almost surely, 2^493659221850 is an apocalyptic number.

493659221850 is an abundant number, since it is smaller than the sum of its proper divisors (832728715362).

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

493659221850 is a wasteful number, since it uses less digits than its factorization.

493659221850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74592 (or 74584 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 493659221850 in words is "four hundred ninety-three billion, six hundred fifty-nine million, two hundred twenty-one thousand, eight hundred fifty".