491544014404 has 27 divisors (see below), whose sum is σ = 863351986077. Its totient is φ = 244875297744.

The previous prime is 491544014389. The next prime is 491544014453. The reversal of 491544014404 is 404410445194.

The square root of 491544014404 is 701102.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 329418602500 + 162125411904 = 573950^2 + 402648^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 556674547 + ... + 556675429.

Almost surely, 2^491544014404 is an apocalyptic number.

491544014404 is the 701102-nd square number.

It is an amenable number.

491544014404 is a deficient number, since it is larger than the sum of its proper divisors (371807971673).

491544014404 is an frugal number, since it uses more digits than its factorization.

491544014404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2564 (or 1282 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 40.

Adding to 491544014404 its reverse (404410445194), we get a palindrome (895954459598).

The spelling of 491544014404 in words is "four hundred ninety-one billion, five hundred forty-four million, fourteen thousand, four hundred four".