490387728584 has 24 divisors (see below), whose sum is σ = 995646685410. Its totient is φ = 226332797184.

The previous prime is 490387728529. The next prime is 490387728613. The reversal of 490387728584 is 485827783094.

It can be written as a sum of positive squares in 3 ways, for example, as 380281888900 + 110105839684 = 616670^2 + 331822^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 490387728584.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 181355057 + ... + 181357760.

Almost surely, 2^490387728584 is an apocalyptic number.

It is an amenable number.

490387728584 is an abundant number, since it is smaller than the sum of its proper divisors (505258956826).

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

490387728584 is a wasteful number, since it uses less digits than its factorization.

490387728584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362712849 (or 362712832 counting only the distinct ones).

The product of its (nonzero) digits is 108380160, while the sum is 65.

The spelling of 490387728584 in words is "four hundred ninety billion, three hundred eighty-seven million, seven hundred twenty-eight thousand, five hundred eighty-four".