6548961581267 has 16 divisors (see below), whose sum is σ = 7743083501760. Its totient is φ = 5419502097408.

The previous prime is 6548961581257. The next prime is 6548961581297. The reversal of 6548961581267 is 7621851698456.

It is not a de Polignac number, because 6548961581267 - 2¹⁰ = 6548961580243 is a prime.

It is a super-2 number, since 2×6548961581267² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6548961581197 and 6548961581206.

It is not an unprimeable number, because it can be changed into a prime (6548961581207) 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 15 ways as a sum of consecutive naturals, for example, 2412983 + ... + 4349759.

It is an arithmetic number, because the mean of its divisors is an integer number (483942718860).

Almost surely, 2^{6548961581267} is an apocalyptic number.

6548961581267 is a deficient number, since it is larger than the sum of its proper divisors (1194121920493).

6548961581267 is a wasteful number, since it uses less digits than its factorization.

6548961581267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953470.

The product of its digits is 174182400, while the sum is 68.

The spelling of 6548961581267 in words is "six trillion, five hundred forty-eight billion, nine hundred sixty-one million, five hundred eighty-one thousand, two hundred sixty-seven".