490866218371 has 8 divisors (see below), whose sum is σ = 517481478144. Its totient is φ = 464924762760.

The previous prime is 490866218351. The next prime is 490866218417. The reversal of 490866218371 is 173812668094.

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 490866218371 - 2²¹ = 490864121219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490866218351) 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 7 ways as a sum of consecutive naturals, for example, 168449545 + ... + 168452458.

It is an arithmetic number, because the mean of its divisors is an integer number (64685184768).

Almost surely, 2^490866218371 is an apocalyptic number.

490866218371 is a deficient number, since it is larger than the sum of its proper divisors (26615259773).

490866218371 is a wasteful number, since it uses less digits than its factorization.

490866218371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336902081.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 490866218371 in words is "four hundred ninety billion, eight hundred sixty-six million, two hundred eighteen thousand, three hundred seventy-one".