64823020417 has 8 divisors (see below), whose sum is σ = 65511333216. Its totient is φ = 64135116672.

The previous prime is 64823020387. The next prime is 64823020459. The reversal of 64823020417 is 71402032846.

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 64823020417 - 2¹⁹ = 64822496129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64823023417) 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 7 ways as a sum of consecutive naturals, for example, 221778 + ... + 422884.

It is an arithmetic number, because the mean of its divisors is an integer number (8188916652).

Almost surely, 2^64823020417 is an apocalyptic number.

It is an amenable number.

64823020417 is a deficient number, since it is larger than the sum of its proper divisors (688312799).

64823020417 is a wasteful number, since it uses less digits than its factorization.

64823020417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204527.

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 64823020417 in words is "sixty-four billion, eight hundred twenty-three million, twenty thousand, four hundred seventeen".