498889794816 has 864 divisors, whose sum is σ = 1807402584960. Its totient is φ = 135165542400.

The previous prime is 498889794811. The next prime is 498889794863. The reversal of 498889794816 is 618497988894.

It is a happy number.

498889794816 is a `hidden beast` number, since 49 + 8 + 8 + 8 + 97 + 9 + 481 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (498889794811) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 513789211 + ... + 513790181.

It is an arithmetic number, because the mean of its divisors is an integer number (2091901140).

Almost surely, 2^498889794816 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 498889794816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (903701292480).

498889794816 is an abundant number, since it is smaller than the sum of its proper divisors (1308512790144).

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

498889794816 is a wasteful number, since it uses less digits than its factorization.

498889794816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088 (or 1061 counting only the distinct ones).

The product of its digits is 2006581248, while the sum is 81.

The spelling of 498889794816 in words is "four hundred ninety-eight billion, eight hundred eighty-nine million, seven hundred ninety-four thousand, eight hundred sixteen".