494133445980 has 192 divisors, whose sum is σ = 1588124160000. Its totient is φ = 127419505920.

The previous prime is 494133445979. The next prime is 494133446017. The reversal of 494133445980 is 89544331494.

494133445980 is a `hidden beast` number, since 4 + 9 + 4 + 1 + 3 + 3 + 44 + 598 + 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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22973271 + ... + 22994769.

It is an arithmetic number, because the mean of its divisors is an integer number (8271480000).

Almost surely, 2^494133445980 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 494133445980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (794062080000).

494133445980 is an abundant number, since it is smaller than the sum of its proper divisors (1093990714020).

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

494133445980 is a wasteful number, since it uses less digits than its factorization.

494133445980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22921 (or 22913 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 494133445980 in words is "four hundred ninety-four billion, one hundred thirty-three million, four hundred forty-five thousand, nine hundred eighty".