491928964682 has 16 divisors (see below), whose sum is σ = 746987848200. Its totient is φ = 242938967040.

The previous prime is 491928964643. The next prime is 491928964697. The reversal of 491928964682 is 286469829194.

It can be written as a sum of positive squares in 4 ways, for example, as 128716630441 + 363212334241 = 358771^2 + 602671^2 .

It is a super-2 number, since 2×491928964682² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1322069 + ... + 1652792.

Almost surely, 2^491928964682 is an apocalyptic number.

491928964682 is a deficient number, since it is larger than the sum of its proper divisors (255058883518).

491928964682 is a wasteful number, since it uses less digits than its factorization.

491928964682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2975881.

The product of its digits is 107495424, while the sum is 68.

The spelling of 491928964682 in words is "four hundred ninety-one billion, nine hundred twenty-eight million, nine hundred sixty-four thousand, six hundred eighty-two".