35527481681 has 4 divisors (see below), whose sum is σ = 35532929700. Its totient is φ = 35522033664.

The previous prime is 35527481623. The next prime is 35527481687. The reversal of 35527481681 is 18618472553.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1183979281 + 34343502400 = 34409^2 + 185320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35527481681 is a prime.

It is a super-2 number, since 2×35527481681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (35527481687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2714216 + ... + 2727273.

It is an arithmetic number, because the mean of its divisors is an integer number (8883232425).

Almost surely, 2^35527481681 is an apocalyptic number.

It is an amenable number.

35527481681 is a deficient number, since it is larger than the sum of its proper divisors (5448019).

35527481681 is an equidigital number, since it uses as much as digits as its factorization.

35527481681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5448018.

The product of its digits is 1612800, while the sum is 50.

The spelling of 35527481681 in words is "thirty-five billion, five hundred twenty-seven million, four hundred eighty-one thousand, six hundred eighty-one".