65897679856 has 20 divisors (see below), whose sum is σ = 129475021104. Its totient is φ = 32484771200.

The previous prime is 65897679851. The next prime is 65897679901.

65897679856 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65897679851) 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 3 ways as a sum of consecutive naturals, for example, 29003125 + ... + 29005396.

Almost surely, 2^65897679856 is an apocalyptic number.

It is an amenable number.

65897679856 is a deficient number, since it is larger than the sum of its proper divisors (63577341248).

65897679856 is a wasteful number, since it uses less digits than its factorization.

65897679856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58008600 (or 58008594 counting only the distinct ones).

The product of its digits is 1371686400, while the sum is 76.

The spelling of 65897679856 in words is "sixty-five billion, eight hundred ninety-seven million, six hundred seventy-nine thousand, eight hundred fifty-six".