42686100065 has 32 divisors (see below), whose sum is σ = 61848161280. Its totient is φ = 27659810304.

The previous prime is 42686100059. The next prime is 42686100077. The reversal of 42686100065 is 56000168624.

It is not a de Polignac number, because 42686100065 - 2⁴ = 42686100049 is a prime.

It is a super-3 number, since 3×42686100065³ (a number of 33 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 399692 + ... + 495101.

It is an arithmetic number, because the mean of its divisors is an integer number (1932755040).

Almost surely, 2^42686100065 is an apocalyptic number.

It is an amenable number.

42686100065 is a deficient number, since it is larger than the sum of its proper divisors (19162061215).

42686100065 is a wasteful number, since it uses less digits than its factorization.

42686100065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894881.

The product of its (nonzero) digits is 69120, while the sum is 38.

Adding to 42686100065 its reverse (56000168624), we get a palindrome (98686268689).

The spelling of 42686100065 in words is "forty-two billion, six hundred eighty-six million, one hundred thousand, sixty-five".