491602828896 has 36 divisors (see below), whose sum is σ = 1397995545492. Its totient is φ = 163867609536.

The previous prime is 491602828819. The next prime is 491602828921. The reversal of 491602828896 is 698828206194.

491602828896 is a `hidden beast` number, since 491 + 60 + 2 + 8 + 2 + 8 + 89 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 853476846 + ... + 853477421.

It is an arithmetic number, because the mean of its divisors is an integer number (38833209597).

Almost surely, 2^491602828896 is an apocalyptic number.

It is an amenable number.

491602828896 is an abundant number, since it is smaller than the sum of its proper divisors (906392716596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

491602828896 is a wasteful number, since it uses less digits than its factorization.

491602828896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706954283 (or 1706954272 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 63.

The spelling of 491602828896 in words is "four hundred ninety-one billion, six hundred two million, eight hundred twenty-eight thousand, eight hundred ninety-six".