35856830881 has 9 divisors (see below), whose sum is σ = 37488159219. Its totient is φ = 34293672336.

The previous prime is 35856830879. The next prime is 35856830903. The reversal of 35856830881 is 18803865853.

The square root of 35856830881 is 189359.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6951390625 + 28905440256 = 83375^2 + 170016^2 .

It is not a de Polignac number, because 35856830881 - 2¹ = 35856830879 is a prime.

It is a super-2 number, since 2×35856830881² (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 (35856830981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4351141 + ... + 4359373.

Almost surely, 2^35856830881 is an apocalyptic number.

35856830881 is the 189359-th square number.

35856830881 is the 94680-th centered octagonal number.

It is an amenable number.

35856830881 is a deficient number, since it is larger than the sum of its proper divisors (1631328338).

35856830881 is an frugal number, since it uses more digits than its factorization.

35856830881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16512 (or 8256 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 55.

The spelling of 35856830881 in words is "thirty-five billion, eight hundred fifty-six million, eight hundred thirty thousand, eight hundred eighty-one".