64852816688747 has 8 divisors (see below), whose sum is σ = 68266196902800. Its totient is φ = 61439443881984.

The previous prime is 64852816688713. The next prime is 64852816688749. The reversal of 64852816688747 is 74788661825846.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64852816688747 - 2³⁶ = 64784097212011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64852816688749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31799279 + ... + 33777207.

It is an arithmetic number, because the mean of its divisors is an integer number (8533274612850).

Almost surely, 2^{64852816688747} is an apocalyptic number.

64852816688747 is a deficient number, since it is larger than the sum of its proper divisors (3413380214053).

64852816688747 is a wasteful number, since it uses less digits than its factorization.

64852816688747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3703645.

The product of its digits is 6936330240, while the sum is 80.

The spelling of 64852816688747 in words is "sixty-four trillion, eight hundred fifty-two billion, eight hundred sixteen million, six hundred eighty-eight thousand, seven hundred forty-seven".