494969496221 has 8 divisors (see below), whose sum is σ = 497584395264. Its totient is φ = 492354841680.

The previous prime is 494969496211. The next prime is 494969496239. The reversal of 494969496221 is 122694969494.

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 494969496221 - 2¹⁸ = 494969234077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494969496211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5179751 + ... + 5274443.

It is an arithmetic number, because the mean of its divisors is an integer number (62198049408).

Almost surely, 2^494969496221 is an apocalyptic number.

It is an amenable number.

494969496221 is a deficient number, since it is larger than the sum of its proper divisors (2614899043).

494969496221 is a wasteful number, since it uses less digits than its factorization.

494969496221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122251.

The product of its digits is 60466176, while the sum is 65.

The spelling of 494969496221 in words is "four hundred ninety-four billion, nine hundred sixty-nine million, four hundred ninety-six thousand, two hundred twenty-one".