5206021344981 has 12 divisors (see below), whose sum is σ = 7520537901708. Its totient is φ = 3470344300224.

The previous prime is 5206021344971. The next prime is 5206021344983. The reversal of 5206021344981 is 1894431206025.

5206021344981 is a `hidden beast` number, since 5 + 2 + 0 + 602 + 1 + 34 + 4 + 9 + 8 + 1 = 666.

5206021344981 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 2 ways, for example, as 3513768995025 + 1692252349956 = 1874505^2 + 1300866^2 .

It is not a de Polignac number, because 5206021344981 - 2²³ = 5206012956373 is a prime.

It is a super-2 number, since 2×5206021344981² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5206021344983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27951730 + ... + 28137363.

It is an arithmetic number, because the mean of its divisors is an integer number (626711491809).

Almost surely, 2^{5206021344981} is an apocalyptic number.

It is an amenable number.

5206021344981 is a deficient number, since it is larger than the sum of its proper divisors (2314516556727).

5206021344981 is a wasteful number, since it uses less digits than its factorization.

5206021344981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56099412 (or 56099409 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 5206021344981 in words is "five trillion, two hundred six billion, twenty-one million, three hundred forty-four thousand, nine hundred eighty-one".