490544978081 has 8 divisors (see below), whose sum is σ = 506825644800. Its totient is φ = 474292851120.

The previous prime is 490544978017. The next prime is 490544978173. The reversal of 490544978081 is 180879445094.

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 490544978081 - 2⁶ = 490544978017 is a prime.

It is a super-2 number, since 2×490544978081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 490544978081.

It is not an unprimeable number, because it can be changed into a prime (490544978681) 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, 7099991 + ... + 7168748.

It is an arithmetic number, because the mean of its divisors is an integer number (63353205600).

Almost surely, 2^490544978081 is an apocalyptic number.

It is an amenable number.

490544978081 is a deficient number, since it is larger than the sum of its proper divisors (16280666719).

490544978081 is a wasteful number, since it uses less digits than its factorization.

490544978081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14269879.

The product of its (nonzero) digits is 11612160, while the sum is 59.

The spelling of 490544978081 in words is "four hundred ninety billion, five hundred forty-four million, nine hundred seventy-eight thousand, eighty-one".