5663721747479 has 2 divisors, whose sum is σ = 5663721747480. Its totient is φ = 5663721747478.

The previous prime is 5663721747469. The next prime is 5663721747511. The reversal of 5663721747479 is 9747471273665.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5663721747479 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5663721747469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2831860873739 + 2831860873740.

It is an arithmetic number, because the mean of its divisors is an integer number (2831860873740).

Almost surely, 2^{5663721747479} is an apocalyptic number.

5663721747479 is a deficient number, since it is larger than the sum of its proper divisors (1).

5663721747479 is an equidigital number, since it uses as much as digits as its factorization.

5663721747479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373403520, while the sum is 68.

The spelling of 5663721747479 in words is "five trillion, six hundred sixty-three billion, seven hundred twenty-one million, seven hundred forty-seven thousand, four hundred seventy-nine".