498647645208 has 640 divisors, whose sum is σ = 1588016041920. Its totient is φ = 145437327360.

The previous prime is 498647645203. The next prime is 498647645239. The reversal of 498647645208 is 802546746894.

498647645208 is a `hidden beast` number, since 4 + 9 + 8 + 6 + 47 + 64 + 520 + 8 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (498647645203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 885697135 + ... + 885697697.

Almost surely, 2^498647645208 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 498647645208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (794008020960).

498647645208 is an abundant number, since it is smaller than the sum of its proper divisors (1089368396712).

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

498647645208 is a wasteful number, since it uses less digits than its factorization.

498647645208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729 (or 716 counting only the distinct ones).

The product of its (nonzero) digits is 92897280, while the sum is 63.

The spelling of 498647645208 in words is "four hundred ninety-eight billion, six hundred forty-seven million, six hundred forty-five thousand, two hundred eight".