494880021289 has 8 divisors (see below), whose sum is σ = 503294742720. Its totient is φ = 486466197456.

The previous prime is 494880021277. The next prime is 494880021323. The reversal of 494880021289 is 982120088494.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 494880021289 - 2⁵ = 494880021257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494880021239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 938439 + ... + 1367635.

It is an arithmetic number, because the mean of its divisors is an integer number (62911842840).

Almost surely, 2^494880021289 is an apocalyptic number.

It is an amenable number.

494880021289 is a deficient number, since it is larger than the sum of its proper divisors (8414721431).

494880021289 is a wasteful number, since it uses less digits than its factorization.

494880021289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448799.

The product of its (nonzero) digits is 2654208, while the sum is 55.

The spelling of 494880021289 in words is "four hundred ninety-four billion, eight hundred eighty million, twenty-one thousand, two hundred eighty-nine".