63975492866 has 16 divisors (see below), whose sum is σ = 96449631360. Its totient is φ = 31825951920.

The previous prime is 63975492851. The next prime is 63975492869. The reversal of 63975492866 is 66829457936.

It is not an unprimeable number, because it can be changed into a prime (63975492869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299255 + ... + 466373.

It is an arithmetic number, because the mean of its divisors is an integer number (6028101960).

Almost surely, 2^63975492866 is an apocalyptic number.

63975492866 is a deficient number, since it is larger than the sum of its proper divisors (32474138494).

63975492866 is a wasteful number, since it uses less digits than its factorization.

63975492866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168089.

The product of its digits is 117573120, while the sum is 65.

The spelling of 63975492866 in words is "sixty-three billion, nine hundred seventy-five million, four hundred ninety-two thousand, eight hundred sixty-six".