65474664813 has 12 divisors (see below), whose sum is σ = 94588890240. Its totient is φ = 43643142216.

The previous prime is 65474664803. The next prime is 65474664817. The reversal of 65474664813 is 31846647456.

65474664813 is a `hidden beast` number, since 6 + 547 + 46 + 6 + 48 + 13 = 666.

It is not a de Polignac number, because 65474664813 - 2⁴ = 65474664797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65474664813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65474664817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 489981 + ... + 609122.

It is an arithmetic number, because the mean of its divisors is an integer number (7882407520).

Almost surely, 2^65474664813 is an apocalyptic number.

It is an amenable number.

65474664813 is a deficient number, since it is larger than the sum of its proper divisors (29114225427).

65474664813 is a wasteful number, since it uses less digits than its factorization.

65474664813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105728 (or 1105725 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 54.

The spelling of 65474664813 in words is "sixty-five billion, four hundred seventy-four million, six hundred sixty-four thousand, eight hundred thirteen".