64441652717 has 16 divisors (see below), whose sum is σ = 70431459840. Its totient is φ = 58602690432.

The previous prime is 64441652711. The next prime is 64441652797. The reversal of 64441652717 is 71725614446.

It is not a de Polignac number, because 64441652717 - 2¹⁴ = 64441636333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64441652711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400688 + ... + 537990.

It is an arithmetic number, because the mean of its divisors is an integer number (4401966240).

Almost surely, 2^64441652717 is an apocalyptic number.

It is an amenable number.

64441652717 is a deficient number, since it is larger than the sum of its proper divisors (5989807123).

64441652717 is a wasteful number, since it uses less digits than its factorization.

64441652717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137852.

The product of its digits is 1128960, while the sum is 47.

The spelling of 64441652717 in words is "sixty-four billion, four hundred forty-one million, six hundred fifty-two thousand, seven hundred seventeen".