3806778555859 has 8 divisors (see below), whose sum is σ = 3838222135440. Its totient is φ = 3775371100800.

The previous prime is 3806778555841. The next prime is 3806778555889. The reversal of 3806778555859 is 9585558776083.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3806778555859 - 2¹¹ = 3806778553811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3806778555809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8819482 + ... + 9241039.

It is an arithmetic number, because the mean of its divisors is an integer number (479777766930).

Almost surely, 2^{3806778555859} is an apocalyptic number.

3806778555859 is a deficient number, since it is larger than the sum of its proper divisors (31443579581).

3806778555859 is a wasteful number, since it uses less digits than its factorization.

3806778555859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18062261.

The product of its (nonzero) digits is 2540160000, while the sum is 76.

The spelling of 3806778555859 in words is "three trillion, eight hundred six billion, seven hundred seventy-eight million, five hundred fifty-five thousand, eight hundred fifty-nine".