5542686112681 has 9 divisors (see below), whose sum is σ = 5594261966391. Its totient is φ = 5491581517944.

The previous prime is 5542686112577. The next prime is 5542686112687. The reversal of 5542686112681 is 1862116862455.

It is a happy number.

The square root of 5542686112681 is 2354291.

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

5542686112681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3863225629081 + 1679460483600 = 1965509^2 + 1295940^2 .

It is not a de Polignac number, because 5542686112681 - 2⁷ = 5542686112553 is a prime.

It is a super-2 number, since 2×5542686112681² (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 (5542686112687) 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, 256606920 + ... + 256628518.

Almost surely, 2^{5542686112681} is an apocalyptic number.

5542686112681 is the 2354291-st square number.

5542686112681 is the 1177146-th centered octagonal number.

It is an amenable number.

5542686112681 is a deficient number, since it is larger than the sum of its proper divisors (51575853710).

5542686112681 is an frugal number, since it uses more digits than its factorization.

5542686112681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43416 (or 21708 counting only the distinct ones).

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

The spelling of 5542686112681 in words is "five trillion, five hundred forty-two billion, six hundred eighty-six million, one hundred twelve thousand, six hundred eighty-one".