6546406261 has 4 divisors (see below), whose sum is σ = 6546808800. Its totient is φ = 6546003724.

The previous prime is 6546406241. The next prime is 6546406271. The reversal of 6546406261 is 1626046456.

6546406261 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6546406261 - 2¹¹ = 6546404213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6546406231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175801 + ... + 209758.

It is an arithmetic number, because the mean of its divisors is an integer number (1636702200).

Almost surely, 2^6546406261 is an apocalyptic number.

It is an amenable number.

6546406261 is a deficient number, since it is larger than the sum of its proper divisors (402539).

6546406261 is a wasteful number, since it uses less digits than its factorization.

6546406261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402538.

The product of its (nonzero) digits is 207360, while the sum is 40.

The square root of 6546406261 is about 80909.8650412915. The cubic root of 6546406261 is about 1870.6863810517.

The spelling of 6546406261 in words is "six billion, five hundred forty-six million, four hundred six thousand, two hundred sixty-one".