5668245384781 has 4 divisors (see below), whose sum is σ = 6477994725472. Its totient is φ = 4858496044092.

The previous prime is 5668245384779. The next prime is 5668245384817. The reversal of 5668245384781 is 1874835428665.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5668245384781 - 2¹ = 5668245384779 is a prime.

It is a super-2 number, since 2×5668245384781² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5668245384701) 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 3 ways as a sum of consecutive naturals, for example, 404874670335 + ... + 404874670348.

It is an arithmetic number, because the mean of its divisors is an integer number (1619498681368).

Almost surely, 2^{5668245384781} is an apocalyptic number.

It is an amenable number.

5668245384781 is a deficient number, since it is larger than the sum of its proper divisors (809749340691).

5668245384781 is an equidigital number, since it uses as much as digits as its factorization.

5668245384781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809749340690.

The product of its digits is 309657600, while the sum is 67.

The spelling of 5668245384781 in words is "five trillion, six hundred sixty-eight billion, two hundred forty-five million, three hundred eighty-four thousand, seven hundred eighty-one".