64201683285 has 24 divisors (see below), whose sum is σ = 117828973080. Its totient is φ = 32226726912.

The previous prime is 64201683269. The next prime is 64201683323. The reversal of 64201683285 is 58238610246.

64201683285 is a `hidden beast` number, since 64 + 201 + 68 + 328 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 25521021009 + 38680662276 = 159753^2 + 196674^2 .

It is not a de Polignac number, because 64201683285 - 2⁴ = 64201683269 is a prime.

It is a super-3 number, since 3×64201683285³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 64201683285.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41961120 + ... + 41962649.

It is an arithmetic number, because the mean of its divisors is an integer number (4909540545).

Almost surely, 2^64201683285 is an apocalyptic number.

It is an amenable number.

64201683285 is a deficient number, since it is larger than the sum of its proper divisors (53627289795).

64201683285 is a wasteful number, since it uses less digits than its factorization.

64201683285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83923797 (or 83923794 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 64201683285 in words is "sixty-four billion, two hundred one million, six hundred eighty-three thousand, two hundred eighty-five".