490673221632 has 468 divisors, whose sum is σ = 1596480877992. Its totient is φ = 145008230400.

The previous prime is 490673221607. The next prime is 490673221639. The reversal of 490673221632 is 236122376094.

490673221632 is a `hidden beast` number, since 4 + 9 + 0 + 6 + 7 + 3 + 2 + 2 + 1 + 632 = 666.

It is not an unprimeable number, because it can be changed into a prime (490673221639) 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, 182880963 + ... + 182883645.

Almost surely, 2^490673221632 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 490673221632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (798240438996).

490673221632 is an abundant number, since it is smaller than the sum of its proper divisors (1105807656360).

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

490673221632 is a wasteful number, since it uses less digits than its factorization.

490673221632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2776 (or 2740 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 490673221632 in words is "four hundred ninety billion, six hundred seventy-three million, two hundred twenty-one thousand, six hundred thirty-two".