64090286685 has 24 divisors (see below), whose sum is σ = 112235093880. Its totient is φ = 33829097472.

The previous prime is 64090286683. The next prime is 64090286717. The reversal of 64090286685 is 58668209046.

It is a happy number.

64090286685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6740574201 + 57349712484 = 82101^2 + 239478^2 .

It is not a de Polignac number, because 64090286685 - 2¹ = 64090286683 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64090286683) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7337020 + ... + 7345749.

It is an arithmetic number, because the mean of its divisors is an integer number (4676462245).

Almost surely, 2^64090286685 is an apocalyptic number.

It is an amenable number.

64090286685 is a deficient number, since it is larger than the sum of its proper divisors (48144807195).

64090286685 is a wasteful number, since it uses less digits than its factorization.

64090286685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14682877 (or 14682874 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 64090286685 in words is "sixty-four billion, ninety million, two hundred eighty-six thousand, six hundred eighty-five".