35084404857681 has 9 divisors (see below), whose sum is σ = 50677499350569. Its totient is φ = 23389591392036.

The previous prime is 35084404857647. The next prime is 35084404857683. The reversal of 35084404857681 is 18675840448053.

The square root of 35084404857681 is 5923209.

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

35084404857681 is a `hidden beast` number, since 3 + 5 + 0 + 8 + 4 + 4 + 0 + 485 + 76 + 81 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 35084404857681 - 2⁷ = 35084404857553 is a prime.

It is a super-2 number, since 2×35084404857681² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (35084404857683) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16782426 + ... + 18756828.

Almost surely, 2^{35084404857681} is an apocalyptic number.

35084404857681 is the 5923209-th square number.

35084404857681 is the 2961605-th centered octagonal number.

It is an amenable number.

35084404857681 is a deficient number, since it is larger than the sum of its proper divisors (15593094492888).

35084404857681 is an frugal number, since it uses more digits than its factorization.

35084404857681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3948812 (or 1974406 counting only the distinct ones).

The product of its (nonzero) digits is 103219200, while the sum is 63.

The spelling of 35084404857681 in words is "thirty-five trillion, eighty-four billion, four hundred four million, eight hundred fifty-seven thousand, six hundred eighty-one".