6845061729 has 32 divisors (see below), whose sum is σ = 10096128000. Its totient is φ = 4090469760.

The previous prime is 6845061721. The next prime is 6845061731. The reversal of 6845061729 is 9271605486.

It is not a de Polignac number, because 6845061729 - 2³ = 6845061721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6845061721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2733492 + ... + 2735994.

It is an arithmetic number, because the mean of its divisors is an integer number (315504000).

Almost surely, 2^6845061729 is an apocalyptic number.

It is an amenable number.

6845061729 is a deficient number, since it is larger than the sum of its proper divisors (3251066271).

6845061729 is a wasteful number, since it uses less digits than its factorization.

6845061729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3645.

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 6845061729 is about 82734.8882213544. Note that the first 3 decimals coincide. The cubic root of 6845061729 is about 1898.7121216012.

The spelling of 6845061729 in words is "six billion, eight hundred forty-five million, sixty-one thousand, seven hundred twenty-nine".