6241663456729 has 2 divisors, whose sum is σ = 6241663456730. Its totient is φ = 6241663456728.

The previous prime is 6241663456673. The next prime is 6241663456741. The reversal of 6241663456729 is 9276543661426.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5688811725129 + 552851731600 = 2385123^2 + 743540^2 .

It is a cyclic number.

It is not a de Polignac number, because 6241663456729 - 2²⁹ = 6241126585817 is a prime.

It is not a weakly prime, because it can be changed into another prime (6241663451729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3120831728364 + 3120831728365.

It is an arithmetic number, because the mean of its divisors is an integer number (3120831728365).

Almost surely, 2^{6241663456729} is an apocalyptic number.

It is an amenable number.

6241663456729 is a deficient number, since it is larger than the sum of its proper divisors (1).

6241663456729 is an equidigital number, since it uses as much as digits as its factorization.

6241663456729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78382080, while the sum is 61.

The spelling of 6241663456729 in words is "six trillion, two hundred forty-one billion, six hundred sixty-three million, four hundred fifty-six thousand, seven hundred twenty-nine".