491292829912 has 32 divisors (see below), whose sum is σ = 925094246400. Its totient is φ = 244603253664.

The previous prime is 491292829889. The next prime is 491292829913. The reversal of 491292829912 is 219928292194.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491292829913) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1635763 + ... + 1912669.

It is an arithmetic number, because the mean of its divisors is an integer number (28909195200).

Almost surely, 2^491292829912 is an apocalyptic number.

It is an amenable number.

491292829912 is a deficient number, since it is larger than the sum of its proper divisors (433801416488).

491292829912 is a wasteful number, since it uses less digits than its factorization.

491292829912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277855 (or 277851 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 58.

The spelling of 491292829912 in words is "four hundred ninety-one billion, two hundred ninety-two million, eight hundred twenty-nine thousand, nine hundred twelve".