499481455320 has 384 divisors, whose sum is σ = 1728859991040. Its totient is φ = 129617832960.

The previous prime is 499481455303. The next prime is 499481455327. The reversal of 499481455320 is 23554184994.

It is a happy number.

499481455320 is a `hidden beast` number, since 4 + 9 + 9 + 4 + 81 + 4 + 553 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499481455327) 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 95 ways as a sum of consecutive naturals, for example, 184513407 + ... + 184516113.

It is an arithmetic number, because the mean of its divisors is an integer number (4502239560).

Almost surely, 2^499481455320 is an apocalyptic number.

499481455320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499481455320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (864429995520).

499481455320 is an abundant number, since it is smaller than the sum of its proper divisors (1229378535720).

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

499481455320 is a wasteful number, since it uses less digits than its factorization.

499481455320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3237 (or 3221 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 499481455320 in words is "four hundred ninety-nine billion, four hundred eighty-one million, four hundred fifty-five thousand, three hundred twenty".