6406045727 has 4 divisors (see below), whose sum is σ = 6579182136. Its totient is φ = 6232909320.

The previous prime is 6406045717. The next prime is 6406045759. The reversal of 6406045727 is 7275406046.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6406045727 - 2⁶ = 6406045663 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 (6406045717) 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, 86568149 + ... + 86568222.

It is an arithmetic number, because the mean of its divisors is an integer number (1644795534).

Almost surely, 2^6406045727 is an apocalyptic number.

6406045727 is a deficient number, since it is larger than the sum of its proper divisors (173136409).

6406045727 is a wasteful number, since it uses less digits than its factorization.

6406045727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173136408.

The product of its (nonzero) digits is 282240, while the sum is 41.

The square root of 6406045727 is about 80037.7768744235. The cubic root of 6406045727 is about 1857.2199698499.

The spelling of 6406045727 in words is "six billion, four hundred six million, forty-five thousand, seven hundred twenty-seven".