3856340568487 has 16 divisors (see below), whose sum is σ = 4252764915360. Its totient is φ = 3467626096000.

The previous prime is 3856340568481. The next prime is 3856340568499. The reversal of 3856340568487 is 7848650436583.

It is a de Polignac number, because none of the positive numbers 2^k-3856340568487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3856340568481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 587812 + ... + 2838697.

It is an arithmetic number, because the mean of its divisors is an integer number (265797807210).

Almost surely, 2^{3856340568487} is an apocalyptic number.

3856340568487 is a deficient number, since it is larger than the sum of its proper divisors (396424346873).

3856340568487 is a wasteful number, since it uses less digits than its factorization.

3856340568487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3427634.

The product of its (nonzero) digits is 464486400, while the sum is 67.

The spelling of 3856340568487 in words is "three trillion, eight hundred fifty-six billion, three hundred forty million, five hundred sixty-eight thousand, four hundred eighty-seven".