6434540361 has 24 divisors (see below), whose sum is σ = 9786915840. Its totient is φ = 4062506400.

The previous prime is 6434540351. The next prime is 6434540377. The reversal of 6434540361 is 1630454346.

6434540361 is a `hidden beast` number, since 643 + 4 + 5 + 4 + 0 + 3 + 6 + 1 = 666.

It is not a de Polignac number, because 6434540361 - 2¹⁵ = 6434507593 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6434540351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 724216 + ... + 733046.

It is an arithmetic number, because the mean of its divisors is an integer number (407788160).

Almost surely, 2^6434540361 is an apocalyptic number.

It is an amenable number.

6434540361 is a deficient number, since it is larger than the sum of its proper divisors (3352375479).

6434540361 is a wasteful number, since it uses less digits than its factorization.

6434540361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13117 (or 13114 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 6434540361 is about 80215.5867709013. The cubic root of 6434540361 is about 1859.9695876054.

The spelling of 6434540361 in words is "six billion, four hundred thirty-four million, five hundred forty thousand, three hundred sixty-one".