487876666491 has 12 divisors (see below), whose sum is σ = 741800779720. Its totient is φ = 308132631360.

The previous prime is 487876666481. The next prime is 487876666499. The reversal of 487876666491 is 194666678784.

It is not a de Polignac number, because 487876666491 - 2⁶ = 487876666427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (487876666499) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1426539790 + ... + 1426540131.

Almost surely, 2^487876666491 is an apocalyptic number.

487876666491 is a deficient number, since it is larger than the sum of its proper divisors (253924113229).

487876666491 is a wasteful number, since it uses less digits than its factorization.

487876666491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853079946 (or 2853079943 counting only the distinct ones).

The product of its digits is 585252864, while the sum is 72.

The spelling of 487876666491 in words is "four hundred eighty-seven billion, eight hundred seventy-six million, six hundred sixty-six thousand, four hundred ninety-one".