35685354681 has 8 divisors (see below), whose sum is σ = 52867192160. Its totient is φ = 23790236436.

The previous prime is 35685354673. The next prime is 35685354701. The reversal of 35685354681 is 18645358653.

It is a happy number.

35685354681 is a `hidden beast` number, since 3 + 5 + 68 + 535 + 46 + 8 + 1 = 666.

It is not a de Polignac number, because 35685354681 - 2³ = 35685354673 is a prime.

It is a super-2 number, since 2×35685354681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (35685354641) 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, 660839875 + ... + 660839928.

It is an arithmetic number, because the mean of its divisors is an integer number (6608399020).

Almost surely, 2^35685354681 is an apocalyptic number.

It is an amenable number.

35685354681 is a deficient number, since it is larger than the sum of its proper divisors (17181837479).

35685354681 is a wasteful number, since it uses less digits than its factorization.

35685354681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321679812 (or 1321679806 counting only the distinct ones).

The product of its digits is 10368000, while the sum is 54.

The spelling of 35685354681 in words is "thirty-five billion, six hundred eighty-five million, three hundred fifty-four thousand, six hundred eighty-one".