5827198053681 has 9 divisors (see below), whose sum is σ = 8417074315819. Its totient is φ = 3884793874536.

The previous prime is 5827198053647. The next prime is 5827198053689. The reversal of 5827198053681 is 1863508917285.

The square root of 5827198053681 is 2413959.

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

5827198053681 is a `hidden beast` number, since 5 + 8 + 2 + 7 + 1 + 98 + 0 + 536 + 8 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5126488430625 + 700709623056 = 2264175^2 + 837084^2 .

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

It is not a de Polignac number, because 5827198053681 - 2⁹ = 5827198053169 is a prime.

It is a super-2 number, since 2×5827198053681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5827198053689) 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, 6839551 + ... + 7644203.

Almost surely, 2^{5827198053681} is an apocalyptic number.

5827198053681 is the 2413959-th square number.

5827198053681 is the 1206980-th centered octagonal number.

It is an amenable number.

5827198053681 is a deficient number, since it is larger than the sum of its proper divisors (2589876262138).

5827198053681 is an frugal number, since it uses more digits than its factorization.

5827198053681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1609312 (or 804656 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 63.

The spelling of 5827198053681 in words is "five trillion, eight hundred twenty-seven billion, one hundred ninety-eight million, fifty-three thousand, six hundred eighty-one".