4009859857768 has 32 divisors (see below), whose sum is σ = 7917117192000. Its totient is φ = 1898706476160.

The previous prime is 4009859857741. The next prime is 4009859857769. The reversal of 4009859857768 is 8677589589004.

It is a Harshad number since it is a multiple of its sum of digits (76).

It is a junction number, because it is equal to n+sod(n) for n = 4009859857694 and 4009859857703.

It is not an unprimeable number, because it can be changed into a prime (4009859857769) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4453413 + ... + 5277556.

It is an arithmetic number, because the mean of its divisors is an integer number (247409912250).

Almost surely, 2^{4009859857768} is an apocalyptic number.

It is an amenable number.

4009859857768 is a deficient number, since it is larger than the sum of its proper divisors (3907257334232).

4009859857768 is a wasteful number, since it uses less digits than its factorization.

4009859857768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9733705 (or 9733701 counting only the distinct ones).

The product of its (nonzero) digits is 1219276800, while the sum is 76.

The spelling of 4009859857768 in words is "four trillion, nine billion, eight hundred fifty-nine million, eight hundred fifty-seven thousand, seven hundred sixty-eight".