65894049856 has 28 divisors (see below), whose sum is σ = 130785461568. Its totient is φ = 32940232832.

The previous prime is 65894049829. The next prime is 65894049931.

65894049856 is nontrivially palindromic in base 10.

65894049856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214245 + ... + 421531.

Almost surely, 2^65894049856 is an apocalyptic number.

It is an amenable number.

65894049856 is a deficient number, since it is larger than the sum of its proper divisors (64891411712).

65894049856 is a wasteful number, since it uses less digits than its factorization.

65894049856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212266 (or 212256 counting only the distinct ones).

The product of its (nonzero) digits is 74649600, while the sum is 64.

The spelling of 65894049856 in words is "sixty-five billion, eight hundred ninety-four million, forty-nine thousand, eight hundred fifty-six".