6544121634047 has 2 divisors, whose sum is σ = 6544121634048. Its totient is φ = 6544121634046.

The previous prime is 6544121634031. The next prime is 6544121634079. The reversal of 6544121634047 is 7404361214456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6544121634047 - 2⁴ = 6544121634031 is a prime.

It is a super-2 number, since 2×6544121634047² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6544121633992 and 6544121634010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6544121034047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3272060817023 + 3272060817024.

It is an arithmetic number, because the mean of its divisors is an integer number (3272060817024).

Almost surely, 2^{6544121634047} is an apocalyptic number.

6544121634047 is a deficient number, since it is larger than the sum of its proper divisors (1).

6544121634047 is an equidigital number, since it uses as much as digits as its factorization.

6544121634047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1935360, while the sum is 47.

The spelling of 6544121634047 in words is "six trillion, five hundred forty-four billion, one hundred twenty-one million, six hundred thirty-four thousand, forty-seven".