7854240065 has 16 divisors (see below), whose sum is σ = 10774065792. Its totient is φ = 5384496384.

The previous prime is 7854239917. The next prime is 7854240113. The reversal of 7854240065 is 5600424587.

7854240065 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 7854240065 - 2¹⁶ = 7854174529 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138902 + ... + 187088.

It is an arithmetic number, because the mean of its divisors is an integer number (673379112).

Almost surely, 2^7854240065 is an apocalyptic number.

It is an amenable number.

7854240065 is a deficient number, since it is larger than the sum of its proper divisors (2919825727).

7854240065 is a wasteful number, since it uses less digits than its factorization.

7854240065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52856.

The product of its (nonzero) digits is 268800, while the sum is 41.

The square root of 7854240065 is about 88624.1505742086. The cubic root of 7854240065 is about 1987.7788121441.

The spelling of 7854240065 in words is "seven billion, eight hundred fifty-four million, two hundred forty thousand, sixty-five".