64404284061085 has 8 divisors (see below), whose sum is σ = 77716901437920. Its totient is φ = 51235586872464.

The previous prime is 64404284061083. The next prime is 64404284061101. The reversal of 64404284061085 is 58016048240446.

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 64404284061085 - 2¹ = 64404284061083 is a prime.

It is a super-3 number, since 3×64404284061085³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64404284061083) 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, 35980046067 + ... + 35980047856.

It is an arithmetic number, because the mean of its divisors is an integer number (9714612679740).

Almost surely, 2^{64404284061085} is an apocalyptic number.

It is an amenable number.

64404284061085 is a deficient number, since it is larger than the sum of its proper divisors (13312617376835).

64404284061085 is a wasteful number, since it uses less digits than its factorization.

64404284061085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71960094107.

The product of its (nonzero) digits is 5898240, while the sum is 52.

The spelling of 64404284061085 in words is "sixty-four trillion, four hundred four billion, two hundred eighty-four million, sixty-one thousand, eighty-five".