498780066321 has 12 divisors (see below), whose sum is σ = 739931990772. Its totient is φ = 323533015776.

The previous prime is 498780066277. The next prime is 498780066373. The reversal of 498780066321 is 123660087894.

498780066321 is a `hidden beast` number, since 498 + 78 + 0 + 0 + 6 + 63 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 463270809600 + 35509256721 = 680640^2 + 188439^2 .

It is not a de Polignac number, because 498780066321 - 2²³ = 498771677713 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (498780061321) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 748918686 + ... + 748919351.

It is an arithmetic number, because the mean of its divisors is an integer number (61660999231).

Almost surely, 2^498780066321 is an apocalyptic number.

It is an amenable number.

498780066321 is a deficient number, since it is larger than the sum of its proper divisors (241151924451).

498780066321 is a wasteful number, since it uses less digits than its factorization.

498780066321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497838080 (or 1497838077 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 498780066321 in words is "four hundred ninety-eight billion, seven hundred eighty million, sixty-six thousand, three hundred twenty-one".