5208241626981 has 12 divisors (see below), whose sum is σ = 7542658027008. Its totient is φ = 3463095387624.

The previous prime is 5208241626947. The next prime is 5208241627003. The reversal of 5208241626981 is 1896261428025.

5208241626981 is a `hidden beast` number, since 5 + 2 + 0 + 8 + 2 + 4 + 1 + 626 + 9 + 8 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-5208241626981 is a prime.

It is a super-2 number, since 2×5208241626981² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5208241626941) 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, 755471115 + ... + 755478008.

It is an arithmetic number, because the mean of its divisors is an integer number (628554835584).

Almost surely, 2^{5208241626981} is an apocalyptic number.

It is an amenable number.

5208241626981 is a deficient number, since it is larger than the sum of its proper divisors (2334416400027).

5208241626981 is a wasteful number, since it uses less digits than its factorization.

5208241626981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510949512 (or 1510949509 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 5208241626981 in words is "five trillion, two hundred eight billion, two hundred forty-one million, six hundred twenty-six thousand, nine hundred eighty-one".