6845040615 has 64 divisors (see below), whose sum is σ = 12674727936. Its totient is φ = 3089826432.

The previous prime is 6845040581. The next prime is 6845040623. The reversal of 6845040615 is 5160405486.

It is a happy number.

It is not a de Polignac number, because 6845040615 - 2¹⁶ = 6844975079 is a prime.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 5006662 + ... + 5008028.

It is an arithmetic number, because the mean of its divisors is an integer number (198042624).

Almost surely, 2^6845040615 is an apocalyptic number.

6845040615 is a deficient number, since it is larger than the sum of its proper divisors (5829687321).

6845040615 is a wasteful number, since it uses less digits than its factorization.

6845040615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948.

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 6845040615 is about 82734.7606209144. The cubic root of 6845040615 is about 1898.7101693690.

The spelling of 6845040615 in words is "six billion, eight hundred forty-five million, forty thousand, six hundred fifteen".