64713695308 has 36 divisors (see below), whose sum is σ = 115922220120. Its totient is φ = 31606628416.

The previous prime is 64713695281. The next prime is 64713695339. The reversal of 64713695308 is 80359631746.

It is a happy number.

It is a super-2 number, since 2×64713695308² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2439291 + ... + 2465677.

It is an arithmetic number, because the mean of its divisors is an integer number (3220061670).

Almost surely, 2^64713695308 is an apocalyptic number.

It is an amenable number.

64713695308 is a deficient number, since it is larger than the sum of its proper divisors (51208524812).

64713695308 is a wasteful number, since it uses less digits than its factorization.

64713695308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26646 (or 26561 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 64713695308 in words is "sixty-four billion, seven hundred thirteen million, six hundred ninety-five thousand, three hundred eight".